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Creation time: 03-18-29
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article
ISI:000315834800005
Arc Behaviour and Cathode Melting Process during VAR: an Experimental and Numerical Study
ISIJ INTERNATIONAL
2013
53
2
213-220
The present study aims to understand the melting of the consumable electrode in the VAR process and gain some insight into the influence of an ensemble arc motion on the melting behaviour. In a previous study, a 2D axisymmetric model of the heat transfer in the cathode had been developed. Using the operating parameters as model inputs, it enabled prediction of the melt rate and the evolution of the melting area. Model results were successfully compared to melt rate measurements in an industrial VAR furnace. In recent years, it has been claimed that the electric arc may not be considered as steady and axisymmetric. Our experimental investigation of the luminosity recorded during an actual VAR heat confirms that a transient 3D behaviour may take place. Therefore, a 3D version of the previous model was set up to predict the heat transfer and melting of the electrode, using the unknown ensemble arc motion as an input. The arc is assimilated to a transient distribution of energy flux density. Results evidence that the influence of the arc motion on the shape of the electrode tip can be very important. In industrial practice, the cathode tip usually remains relatively flat during melting. The shapes of the computed electrode tips enable us to propose some arc parameters which remain compatible with both the periodic behaviour of the light emitted and the flatness of the electrode.
Centre de Compétences : ERMIONE informatique et calcul
0915-1559
10.2355/isijinternational.53.213
AlainJardy
PierreChapelle
AshishMalik
Jean-PierreBellot
HerveCombeau
BernardDussoubs
article
ISI:000324827200023
Cation size effect on the thermochromic properties of rare earth cobaltites RECoO3 (RE: La, Nd, Sm)
JOURNAL OF APPLIED PHYSICS
2013
114
Centre de Compétences : X-Gamma rayons X et spectroscopie
0021-8979
10.1063/1.4821884
F.Capon
A.BOILEAU
C.Carteret
N.Martin
P.Boulet
J. F.Pierson
article
Rougemaille2013
Chiral nature of magnetic monopoles in artificial spin ice
New Journal of Physics
2013
15
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84875826422&partnerID=40&md5=b49f7aed36833edb847643b698afd109
N.Rougemaille
F.Montaigne
B.Canals
M.Hehn
H.Riahi
D.Lacour
J.-C.Toussaint
article
ISI:000324049000004
Competing charge ordering and Mott phases in a correlated Sn/Ge(111) two-dimensional triangular lattice
PHYSICAL REVIEW B
2013
88
12
Département P2M : Surfaces et Spectroscopies
1098-0121
10.1103/PhysRevB.88.125113
R.Cortes
A.Tejeda
J.Lobo-Checa
C.Didiot
B.Kierren
D.Malterre
J.Merino
F.Flores
E. G.Michel
A.Mascaraque
article
Pushkareva:2013
Distribution of Carbon in Martensite During Quenching and Tempering of Dual Phase Steels and Consequences for Damage Properties.
ISIJ International
2013
53
1215-1223
Département SI2M : Microstructures et Contraintes
10.2355/isijinternational.53.1215
I.Pushkareva
C.Scott
M.Goune
N.Valle
A.Redjaïmia
AMoulin
article
ISI:000325342500026
Effect of deposition conditions on the stoichiometry and structural properties of LiNbO3 thin films deposited by MOCVD
2013
8626
Centre de Compétences : X-Gamma rayons X et spectroscopie
Teherani, FH and Look, DC and Rogers, DJ
0277-786X
10.1117/12.2010105
SamuelMargueron
AusrineBartasyte
ValentinaPlausinaitiene
AdulfasAbrutis
PascalBoulet
VirgaudasKubilius
ZitaSaltyte
article
ISI:000329462800004
Effect of Symmetry Breaking on Electronic Band Structure: Gap Opening at the High Symmetry Points
SYMMETRY-BASEL
2013
5
4
344-354
Département P2M : Surfaces et Spectroscopies
2073-8994
10.3390/sym5040344
GuillaumeVasseur
YannickFagot-Revurat
BertrandKierren
MurielSicot
DanielMalterre
article
201-3774
Effects of electrical parameters on the plasma electrolytic oxidation of aluminium
Surface and Coatings Technology
2013
221
70
The plasma electrolytic oxidation (PEO) of aluminium alloys is investigated for different electrical working conditions using a pulsed bipolar current supply. A particular attention is paid to the effect of the anodic current density (from 10 to 90 A dm-2) and current pulse frequency (from 100 to 900 Hz) on the resulting oxide layer. Micro-discharges are characterized during the process by means of fast video imaging with a time and a space resolution of 8 μs and 0.017 mm2, respectively. Correlations are established between themicro-discharge characteristics (surface density, lifetime and size) and the elaborated oxide layers (morphology, growth rate and surface roughness). The highest coating growth rate measured (2.1 μm min-1) is achieved with the combination of the highest current density (75.7 A dm-2) and the highest current pulse frequency (900 Hz). Within these specific current conditions it is concluded that the detrimental effects of numerous micro-discharges are minimized. The results also show that the surface roughness may be largely affected by the presence of long-lived and large micro-discharges which develop over the processed surface. The strongest micro-discharges (live duration up to 0.3 ms and cross-sectional area up to 1 mm2) are mainly observed with the combination of the highest current density (75.7 A dm-2) and the lowest current pulse frequency (100 Hz).
Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS
http://dx.doi.org/10.1016/j.surfcoat.2013.01.029
J.Martin
A.Melhem
I.Shchedrina
T.Duchanoy
A.Nominé
G.Henrion
T.Czerwiec
T.Belmonte
article
ISI:000315145900017
Electron hopping at the Si(111):B-root 3 surface: Insight from local impurity spectroscopy
PHYSICAL REVIEW B
2013
87
7
Département P2M : Surfaces et Spectroscopies
1098-0121
10.1103/PhysRevB.87.075427
C.Tournier-Colletta
B.Kierren
Y.Fagot-Revurat
D.Malterre
article
Riahi2013
Energy levels of interacting curved nanomagnets in a frustrated geometry: Increasing accuracy when using finite difference methods
Journal of Physics Condensed Matter
2013
25
29
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84879863892&partnerID=40&md5=25ddf2bb32fe24df35ebe11a5e02b47d
H.Riahi
F.Montaigne
N.Rougemaille
B.Canals
D.Lacour
M.Hehn
article
Melchior2013
Energy-resolved magnetic domain imaging in TbCo alloys by valence band photoemission magnetic circular dichroism
Physical Review B - Condensed Matter and Materials Physics
2013
88
10
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84884866863&partnerID=40&md5=2a0167f587bb7ba10893fc9a287dca61
P.Melchior
M.Rollinger
P.Thielen
S.Alebrand
U.Bierbrauer
C.Schneider
M.Gottwald
M.Hehn
S.Mangin
M.Cinchetti
M.Aeschlimann
article
Riahi2013
Erratum: Energy levels of interacting curved nanomagnets in a frustrated geometry: Increasing accuracy when using finite difference methods (Journal of Physics Condensed Matter (2013) 25 (296001))
Journal of Physics Condensed Matter
2013
25
33
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84881184641&partnerID=40&md5=4cbba560a1dcc83ef2f7e5a35268c004
H.Riahi
F.Montaigne
N.Rougemaille
B.Canals
D.Lacour
M.Hehn
article
201-3791
ESTELL: a quasi-Toroidally Symmetric Stellarator
Contributions to Plasma Physics
2013
53
459-468
This work presents the physics design for a simple quasi-axially symmetric stellarator. A plasma configuration described by a modest number of Fourier coefficients was found to establish this symmetry with good accuracy. The low rotational transform results in a relatively simple coil set exhibiting low curvatures and comfortable clearance between adjacent coils. As another consequence, the maximum achievable plasma pressure will be limited to about 0.5%. An experiment along the lines proposed would allow an exploration of the confinement properties of a quasi-axially symmetric configuration. ((c) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS
http://dx.doi.org/10.1002/ctpp.201200055
M.Drevlak
F.Brochard
P.Helander
J.Kisslinger
M.Mikhailov
C.Nührenberg
J.Nührenberg
Y.Turkin
article
ISI:000318556100019
Identification of LiNbO3, LiNb3O8 and Li3NbO4 phases in thin films synthesized with different deposition techniques by means of XRD and Raman spectroscopy
JOURNAL OF PHYSICS-CONDENSED MATTER
2013
25
Centre de Compétences : X-Gamma rayons X et spectroscopie
0953-8984
10.1088/0953-8984/25/20/205901
AusrineBartasyte
ValentinaPlausinaitiene
AdulfasAbrutis
SandraStanionyte
SamuelMargueron
PascalBoulet
T.Kobata
YoshiakiUesu
JeromeGleize
article
201-2769
Impacts created on various materials by micro-discharges in heptane: influence of the dissipated charge
Journal of Applied Physics
2013
113
043301
Modes of energy dissipation in impacts made on various materials (Al, Cu, Fe, and Si) by discharges in heptane are investigated for micro-gap conditions. Bulk metals and thin films of 300 nm in thickness deposited on silicon wafers are used as samples. Positive high voltage pulses with nanosecond rise times make it possible to isolate a single discharge and to study the way the charge delivered by the power supply is transferred to the larger electrode (the sample) in a pin-to-plate configuration. The diameter of the impacts created by the plasma varies linearly versus the charge raised at a power close to 0.5. However, the exact value of the power depends on the material. We also show how the impact morphologies change with the applied charge. At high charges, the diameters of impacts on thin films behave as those made on silicon. At low charges, they behave as the bulk material. Finally, we show that the energy dissipated in impacts is below a few percent.
Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS
http://dx.doi.org/10.1063/1.4780786
A.Hamdan
J.-N.Audinot
S.Migot-Choux C. Noël
G.Henrion
T.Belmonte
article
Geandier:2013
In situ structural evolution of steel-based MMC by high energy X-ray diffraction and comparison with finite element modelling micromechanical approach
Materials Science Forum
2013
768-769
313-320
Département SI2M : Microstructures et Contraintes
10.4028/www.scientific.net/MSF.768-769.313
G.Geandier
M.Dehmas
M.Mourot
E.Aeby-Gautier
S.Denis
O.Martin
N.Karnatak
article
Devynck:2013
Influence of the impact angle and the direction against gravity on heat transfer during the cooling of a cylinder by a free planar subcooled impinging jet.
Key Engineering Materials
2013
554--557
1530--1538
Département SI2M : Microstructures et Contraintes
10.4028/www.scientific.net/KEM.554-557.1530
S.Devynck
M.Gradeck
J.P.Bellot
S.Denis
G.Maigrat
M.Varlez
T.Benard
article
ISI:000330016900081
Insight into Organometallic Intermediate and Its Evolution to Covalent Bonding in Surface-Confined Ullmann Polymerization
ACS NANO
2013
7
9
8190-8198
Département P2M : Surfaces et Spectroscopies
1936-0851
10.1021/nn4035684
MarcoDi Giovannantonio
MohamedEl Garah
JoshLipton-Duffin
VincentMeunier
LuisCardenas
Yannick FagotRevurat
AlbanoCossaro
AlbertoVerdini
Dmitrii F.Perepichka
FedericoRosei
GiorgioContini
article
ISI:000325367100003
Interaction of Discharges in Heptane with Silicon Covered by a Carpet of Carbon Nanotubes
ADVANCED ENGINEERING MATERIALS
2013
15
10
885-892
Discharges in heptane in pin-to-plate configuration are produced between a platinum wire and a (100)-oriented silicon wafer coated by a carbon nanotube (CNT) carpet. This carpet is used to simulate the behavior of a nanostructured surface in electro-discharge machining (EDM) where small protrusions on the surface could play a similar role. CNTs behave like simple electrical conductors between the discharge and the silicon wafer. They act as if they would focus the current on smaller areas. The average diameter of impacts is about five times smaller if the silicon wafer is coated by a CNT carpet. The underlying silicon surface is heated by the plasma and melts, forming a central spot surrounded by a serrated trailing edge. The current density being about one order of magnitude larger when a CNT carpet is present, the induced magnetic field stirs the molten silicon, creating serrations all around the impact. Hot nanoparticles of carbon coming from the plasma fall and roll randomly on the silicon surface where they create wavy micro-channels. Nanowires that are detached from the surface are covered by nanoparticles of platinum in the plasma and embedded within an amorphous carbon layer deposited on the nanotube. However, these effects can only be observed if the current density is high enough (>approximate to 10A mu m(-2) depending on the material) like in micro-EDM but not in nano-EDM.
Hamdan, A (Reprint Author), Univ Lorraine, Inst Jean Lamour, CNRS, UMR 7198, F-54042 Nancy, France. Hamdan, Ahmad; Migot-Choux, Sylvie; Noel, Cedric; Kosior, Francis; Henrion, Gerard; Belmonte, Thierry, Univ Lorraine, Inst Jean Lamour, CNRS, UMR 7198, F-54042 Nancy, France. Audinot, Jean-Nicolas, Ctr Rech Publ Gabriel Lippmann, SAM Dept, L-4422 Belvaux, Luxembourg.
Centre de Compétences : ERMIONE informatique et calcul
WILEY-V C H VERLAG GMBH
BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
Article
English
1438-1656
10.1002/adem.201300106
AhmadHamdan
Jean-NicolasAudinot
SylvieMigot-Choux
CedricNoel
FrancisKosior
GerardHenrion
ThierryBelmonte
article
201-3777
Interaction of Discharges in Heptane with Silicon Covered by a Carpet of Carbon Nanotubes,
Advanced Engineering Materials
2013
15
885-892
Discharges in heptane in pin-to-plate configuration are produced between a platinum wire and a (100)-oriented silicon wafer coated by a carbon nanotube (CNT) carpet. This carpet is used to simulate the behavior of a nanostructured surface in electro-discharge machining (EDM) where small protrusions on the surface could play a similar role. CNTs behave like simple electrical conductors between the discharge and the silicon wafer. They act as if they would focus the current on smaller areas. The average diameter of impacts is about five times smaller if the silicon wafer is coated by a CNT carpet. The underlying silicon surface is heated by the plasma and melts, forming a central spot surrounded by a serrated trailing edge. The current density being about one order of magnitude larger when a CNT carpet is present, the induced magnetic field stirs the molten silicon, creating serrations all around the impact. Hot nanoparticles of carbon coming from the plasma fall and roll randomly on the silicon surface where they create wavy micro-channels. Nanowires that are detached from the surface are covered by nanoparticles of platinum in the plasma and embedded within an amorphous carbon layer deposited on the nanotube. However, these effects can only be observed if the current density is high enough (>approximate to 10A mu m(-2) depending on the material) like in micro-EDM but not in nano-EDM.
Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS
http://dx.doi.org/10.1002/adem.201300106
A.Hamdan
J.-N.Audinot
S.Migot-Choux
C.Noel
F.Kosior
G.Henrion
T.Belmonte
article
Lu2013
Interfacial trapping for hot electron injection in silicon
Applied Physics Letters
2013
103
2
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84880475078&partnerID=40&md5=b00d9fdada7fce71fc7dc6fbe33054c7
Y.Lu
D.Lacour
G.Lengaigne
S.Le Gall
S.Suire
F.Montaigne
M.Hehn
article
Lu2013
Interfacial trapping for hot electron injection in silicon
Applied Physics Letters
2013
103
2
Centre de Compétences : MiNaLor micro et nanotechnologies
http://www.scopus.com/inward/record.url?eid=2-s2.0-84880475078&partnerID=40&md5=b00d9fdada7fce71fc7dc6fbe33054c7
Y.Lu
D.Lacour
G.Lengaigne
S.Le Gall
S.Suire
F.Montaigne
M.Hehn
article
Briones2013
Large area patterned magnetic films by depositing cobalt layers on nano-wrinkled polydimethylsiloxane templates
Applied Physics Letters
2013
103
7
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84882394652&partnerID=40&md5=12fb71b0f8a8a9bb4ea68d662d561136
J.Briones
P.Toro
A.Encinas
L.Caballero
J.C.Denardin
F.Melo
E.Cerda
S.Robert
D.Lacour
F.Montaigne
article
ISI:000323769000050
Large area patterned magnetic films by depositing cobalt layers on nano-wrinkled polydimethylsiloxane templates
APPLIED PHYSICS LETTERS
2013
103
Centre de Compétences : X-Gamma rayons X et spectroscopie
0003-6951
10.1063/1.4818677
J.Briones
P.Toro
A.Encinas
L.Caballero
J. C.Denardin
F.Melo
E.Cerda
S.Robert
D.Lacour
F.Montaigne
article
Rajanikanth2013
Magnetic anisotropy modified by electric field in V/Fe/MgO(001)/Fe epitaxial magnetic tunnel junction
Applied Physics Letters
2013
103
6
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84881658211&partnerID=40&md5=fad5a7487bea9bafd8dc17dfe913b5c7
A.Rajanikanth
T.Hauet
F.Montaigne
S.Mangin
S.Andrieu
article
Rajanikanth2013
Magnetic anisotropy modified by electric field in V/Fe/MgO(001)/Fe epitaxial magnetic tunnel junction
Applied Physics Letters
2013
103
6
Centre de Compétences : MiNaLor micro et nanotechnologies
http://www.scopus.com/inward/record.url?eid=2-s2.0-84881658211&partnerID=40&md5=fad5a7487bea9bafd8dc17dfe913b5c7
A.Rajanikanth
T.Hauet
F.Montaigne
S.Mangin
S.Andrieu
article
201-4379
Microstructural characterization of the expanded austenite formed on the plasma nitride AISI 316L steel
Matériaux et Techniques
2013
101
204
Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS
http://dx.doi.org/10.1051/mattech/2013064
M.Keddam
G.Marcos
T.Thiriet
T.Czerwiec
H.Michel
article
ISI:000319568800008
Near-room temperature single-domain epitaxy of reactively sputtered ZnO films
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2013
46
Centre de Compétences : X-Gamma rayons X et spectroscopie
0022-3727
10.1088/0022-3727/46/23/235107
W.Chamorro
D.Horwat
P.Pigeat
P.Miska
S.Migot
F.SOLDERA
P.Boulet
F.MUECKLICH
article
ISI:000314881900006
New insight into the structure of saturated chlorine layer on Ag(111): LT-STM and DFT study
APPLIED SURFACE SCIENCE
2013
267
21-25
Département P2M : Surfaces et Spectroscopies
0169-4332
10.1016/j.apsusc.2012.04.150
B. V.Andryushechkin
V. V.Cherkez
E. V.Gladchenko
G. M.Zhidomirov
B.Kierren
Y.Fagot-Revurat
D.Malterre
K. N.Eltsov
article
ISI:000323715500007
Nonpareil Yb Behavior in YbMn6Ge6-xSnx
PHYSICAL REVIEW LETTERS
2013
111
9
Département P2M : Surfaces et Spectroscopies
0031-9007
10.1103/PhysRevLett.111.096402
T.Mazet
D.Malterre
M.FRANÃ?OIS
C.Dallera
M.Grioni
G.Monaco
article
Sukhostavets2013
Probing the anharmonicity of the potential well for a magnetic vortex core in a nanodot
Physical Review Letters
2013
111
24
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84890287937&partnerID=40&md5=cdbe7fcb95123b33be42e3008f59b4e2
O.V.Sukhostavets
B.Pigeau
S.Sangiao
G.De Loubens
V.V.Naletov
O.Klein
K.Mitsuzuka
S.Andrieu
F.Montaigne
K.Y.Guslienko
article
Sukhostavets2013
Probing the anharmonicity of the potential well for a magnetic vortex core in a nanodot
Physical Review Letters
2013
111
24
Centre de Compétences : MiNaLor micro et nanotechnologies
http://www.scopus.com/inward/record.url?eid=2-s2.0-84890287937&partnerID=40&md5=cdbe7fcb95123b33be42e3008f59b4e2
O.V.Sukhostavets
B.Pigeau
S.Sangiao
G.De Loubens
V.V.Naletov
O.Klein
K.Mitsuzuka
S.Andrieu
F.Montaigne
K.Y.Guslienko
article
Lambert2013
Quantifying perpendicular magnetic anisotropy at the Fe-MgO(001) interface
Applied Physics Letters
2013
102
12
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84875938232&partnerID=40&md5=34c92e2f1215b6fdf8bb1dcac1ffa5b7
C.-H.Lambert
A.Rajanikanth
T.Hauet
S.Mangin
E.E.Fullerton
S.Andrieu
article
201-4180
Real-time Raman spectroscopy measurements to study the uniaxial tension of isotactic polypropylene : a global overview of microstructural deformation mechanisms
Journal of Raman Spectroscopy
2013
44
5
776-784
Micro-Raman spectroscopy was used to investigate the main deformation micromechanisms of isotactic polypropylene uniaxially stretched at constant temperature (T=30 degrees C) under a constant true strain rate (epsilon.zz = 5.103s1). To accurate measurements namely to be free of the recovering phenomenon which causes in most of the cases interference during post-mortem analysis, we introduced a new experimental setup combining a Raman spectrometer with a tensile machine piloted by the VideoTraction system. Microstructure is described by essential parameters such as the crystallinity index, the macromolecular orientation both in the crystalline and the amorphous phase, and distribution of the internal stress at the chemical bonds scale. For each, a well-tried Raman spectral criterion was used. Cross-checking of these results, obtained with a minimum of tensile tests, allows a more complete understanding of the deformation micromechanisms of semi-crystalline polymer. Copyright (c) 2013 John Wiley & Sons, Ltd.
Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS
http://dx.doi.org/10.1002/jrs.4244
J.Martin
M.Ponçot
J.M. Hiver
P.Bourson
A.Dahoun
article
Mercier2013790
Selective removal of metal impurities from single walled carbon nanotube samples
New Journal of Chemistry
2013
37
3
790-795
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84874091228&partnerID=40&md5=cb042fda4868e8defce23d523873e3b1
G.Mercier
C.Herold
J.-F.Marêché
S.Cahen
J.Gleize
J.Ghanbaja
G.Lamura
C.Bellouard
B.Vigolo
article
ISI:000327812700036
Self-Organization of Gold Chloride Molecules on Au(111) Surface
JOURNAL OF PHYSICAL CHEMISTRY C
2013
117
47
24948-24954
Département P2M : Surfaces et Spectroscopies
1932-7447
10.1021/jp409258z
Boris V.Andryushechkin
Vladimir V.Cherkez
Eugeny V.Gladchenko
Tatiana V.Pavlova
Georgy M.Zhidomirov
BertrandKierren
ClementDidiot
YannickFagot-Revurat
DanielMalterre
Konstantin N.Eltsov
article
McCord2013
Separation of low- and high-temperature contributions to the exchange bias in Ni81Fe19-NiO thin films
Physical Review B - Condensed Matter and Materials Physics
2013
88
1
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84880769033&partnerID=40&md5=47274bc59c9fc38ce0cc2241077e1f62
J.McCord
S.Mangin
article
Cascales20134347
Shot noise in epitaxial double-barrier magnetic tunnel junctions
IEEE Transactions on Magnetics
2013
49
7
4347-4350
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84880842943&partnerID=40&md5=64dd058a9b4a18443d9d19d03bcc9a54
J.P.Cascales
L.Martin
A.Dulluard
M.Hehn
C.Tiusan
T.Szczepa?ski
V.Dugaev
J.Barnaš
F.G.Aliev
article
Cascales20134347
Shot noise in epitaxial double-barrier magnetic tunnel junctions
IEEE Transactions on Magnetics
2013
49
7
4347-4350
Centre de Compétences : MiNaLor micro et nanotechnologies
http://www.scopus.com/inward/record.url?eid=2-s2.0-84880842943&partnerID=40&md5=64dd058a9b4a18443d9d19d03bcc9a54
J.P.Cascales
L.Martin
A.Dulluard
M.Hehn
C.Tiusan
T.Szczepa?ski
V.Dugaev
J.Barna?
F.G.Aliev
article
Zhang2013
Signature of magnetization dynamics in spin-transfer-driven nanopillars with tilted easy axis
Applied Physics Letters
2013
102
1
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84872350464&partnerID=40&md5=eae9e693ba3fa39f819baf4eea62e3ad
H.ZHANG
W.Lin
S.Mangin
Z.Zhang
Y.Liu
article
ISI:000313651600047
Structural, tribological and resistivity studies of Ga substituted (Al71-xGax) Pd21Mn8 icosahedral and other intermetallic phases
JOURNAL OF ALLOYS AND COMPOUNDS
2013
551
274-278
Département CP2S : Métallurgie et Surfaces
0925-8388
10.1016/j.jallcom.2012.09.130
MurtazaBohra
M. C.de Weerd
VincentFournee
R. K.Mandal
N. K.Mukhopadhyay
RatnamalaChatterjee
G. V. S.Sastry
article
ISI:000312615500004
Surface electronic structure of InSb(001)-c(8 x 2)
SURFACE SCIENCE
2013
608
22-30
Département P2M : Surfaces et Spectroscopies
0039-6028
10.1016/j.susc.2012.09.009
L.Walczak
G.Goryl
M. A.Valbuena
I.Vobomik
A.Tejeda
A.Taleb-Ibrahimi
J. J.Kolodziej
P.Segovia
E. G.Michel
article
ISI:000321307000037
Synthesis and electronic structure of a two dimensional pi-conjugated polythiophene
CHEMICAL SCIENCE
2013
4
8
3263-3268
Département P2M : Surfaces et Spectroscopies
2041-6520
10.1039/c3sc50800e
LuisCardenas
RicoGutzler
JoshLipton-Duffin
ChaoyingFu
Jaclyn L.Brusso
Laurentiu E.Dinca
MartinVondracak
YannickFagot-Revurat
DanielMalterre
FedericoRosei
Dmitrii F.Perepichka
article
201-3780
Synthesis of platinum embedded in amorphous carbon by micro-gap discharge in heptane
Materials Chemistry and Physics
2013
142
199-206
Micro-gap discharges created in heptane between two platinum pin-electrodes produce platinum particles embedded in an amorphous carbon matrix which exhibits a short-range order. The platinum particles can be sorted by size. The largest ones (>100 nm in diameter) are created by emission of droplets from the liquid pool formed when the discharge hits the electrode surface. They are submitted to high stress levels by fast thermal quenching. The smallest ones (<5 nm) are synthesized in the plasma. Nanoparticles with diameters ranging from 10 to 20 nm have structure defects and are synthesized in post-discharge where huge temperature gradients exist. The short-range order observed in carbon extends typically over 3 nm, and it is observed by high-resolution transmission electron microscopy. This ordered structure of carbon (and a fortiori sp(3) bonds which are identified by FTIR analyses) is clearly visible around the smallest nanoparticles and it is likely formed at the same location, i.e. in the plasma. (C) 2013 Elsevier B.V. All rights reserved.
Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS
http://dx.doi.org/10.1016/j.matchemphys.2013.07.006
A.Hamdan
C.Noel
J.Ghanbaja
S.Migot-Choux
T.Belmonte
article
Gopman2013
Temperature dependence of the switching field in all-perpendicular spin-valve nanopillars
Physical Review B - Condensed Matter and Materials Physics
2013
88
10
Département P2M : Nanomagnétisme et Electronique de Spin
http://www.scopus.com/inward/record.url?eid=2-s2.0-84884843823&partnerID=40&md5=c527e95f973a1a1420cf81d5e2507f35
D.B.Gopman
D.Bedau
G.Wolf
S.Mangin
E.E.Fullerton
J.A.Katine
A.D.Kent
article
ISI:000314881900009
The 2 root 3 x 2 root 3R30 surface reconstruction of alkali/Si(111):B semiconducting surfaces
APPLIED SURFACE SCIENCE
2013
267
35-39
Département P2M : Surfaces et Spectroscopies
0169-4332
10.1016/j.apsusc.2012.05.062
C.Tournier-Colletta
L.Chaput
A.Tejeda
L. A.Cardenas
B.Kierren
D.Malterre
Y.Fagot-Revurat
P.Le Fèvre
F.Bertran
A.Taleb-Ibrahimi
article
201-3786
The effect of noble gas bombarding on nitrogen diffusion in steel.
Materials Chemistry and Physics
2013
143
116-123
The low energy (similar to 50-350 eV) noble gases ion bombardment of the steel surface shows that the pre-treatments increase nitrogen diffusion by modifying the outermost structure of the material. The surface microstructure and morphology of the studied samples were characterized by Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM). The crystalline and chemical structures in the outermost layers of the surface were analyzed by grazing angle X-ray diffraction (GAXRD) and photoemission electron spectroscopy (XPS). Temperature effusion studies of the implanted ions are used to elucidate the noble gases site localization in the network. The local compressive stress induced by the nearby iron atoms on the core level electron wave functions of the trapped noble gases are studied by photoemission electron spectroscopy (XPS) and interpreted considering a simple mechanical model. Nano-hardness measurements show the dependence of the material elastic constant on the energy of the implanted noble gases. Although the ion implantation range is about few nanometers, the atomic attrition effect is larger enough to modify the material structure in the range of micrometers. Two material stress zones were detected where the outermost layers shows compressive stress and the underneath layers shows tensile stress. The implanted noble gases can be easily removed by heating. A diffusion model for polycrystalline-phase systems is used in order to discuss the influence of the atomic attrition on the N diffusion coefficient. The concomitant effect of grain refining, stress, and surface texture on the enhancing nitrogen diffusion effect is discussed.
Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS
http://dx.doi.org/10.1016/j.matchemphys.2013.08.027
E.A.Ochoa
R.Droppa
R.L.O.Basso
M.Morales
S.Cucatti
L.F.Zagonel
T.Czerwiec
M.C.Dos Santos
C.A.Figueroa
F.Alvarez
article
ISI:000321687800002
The Intermetallic Compound ZnPd and Its Role in Methanol Steam Reforming
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING
2013
55
3
289-367
Département CP2S : Métallurgie et Surfaces
0161-4940
10.1080/01614940.2013.796192
M.Armbruester
M.Behrens
K.Foettinger
M.Friedrich
E.Gaudry
S. K.Matam
H. R.SHARMA
article
201-3772
Ti-Ar scattering cross sections by direct comparison of Monte Carlo simulations and laser-induced fluorescence spectroscopy in magnetron discharges.
Journal of Physics D: Applied Physics
2013
46
175201
A 3D Monte Carlo code (OMEGA) was developed to simulate the transport of sputtered atoms in a magnetron discharge operating in direct current mode. Collisions between the sputtered Ti atoms and the neutral process gas atoms (Ar) were modelled. Spatially resolved simulated velocity distributions of the sputtered particles parallel as well as perpendicular to the cathode surface for different operating pressures were recorded and benchmarked against experimentally obtained profiles using laser-induced fluorescence. New differential (angular and energy-dependent) cross sections for Ti-Ar elastic collisions were thereby obtained, which resulted in good agreement between modelled and experimental results. The differences with respect to commonly used extrapolated Ar-Ar cross sections to describe the Ti-Ar interaction are highlighted and discussed.
Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS
http://dx.doi.org/10.1088/0022-3727/46/17/175201
D.Lundin
C.Vitelaru
DePoucques
L
N.Brenning
T.Minea.
article
ISI:000314823600005
Understanding the insulating nature of alkali-metal/Si(111):B interfaces
JOURNAL OF PHYSICS-CONDENSED MATTER
2013
25
9
Département P2M : Surfaces et Spectroscopies
0953-8984
10.1088/0953-8984/25/9/094004
Y.Fagot-Revurat
C.Tournier-Colletta
L.Chaput
A.Tejeda
L.Cardenas
B.Kierren
D.Malterre
P.Le Fèvre
F.Bertran
A.Taleb-Ibrahimi