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References

2014

Articles:

Hamdan, A., Noel, C. and Belmonte, T.
Materials Letters, 135:115-118
2014

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Neggache, A., Hauet, T., Bertran, F., Le Fèvre, P., Petit-Watelot, S., Devolder, T., Ohresser, P., Boulet, P., Mewes, C., Maat, S., Childress, J. R. and Andrieu, S.
APPLIED PHYSICS LETTERS, 104
2014
ISSN: 0003-6951

Equipe: Centre de Compétences : X-Gamma rayons X et spectroscopie

Nominé, A., Martin, J., Noel, C., V. Bardin, I., L. Kovalev, V., Belmonte, T., G. Rakoch, A. and Henrion, G.
Applied Physics Letters, 104:081603
2014

Resume: Plasma electrolytic oxidation (PEO) processing of EV31 magnesium alloy has been carried out in fluoride containing electrolyte under bipolar pulse current regime. Unusual PEO cathodic microdischarges have been observed and investigated. It is shown that the cathodic micro-discharges exhibit a collective intermittent behavior, which is discussed in terms of charge accumulations at the layer/electrolyte and layer/metal interfaces. Optical emission spectroscopy is used to determine the electron density (typ. 1015cm_3) and the electron temperature (typ. 7500K) while the role of F_ anions on the appearance of cathodic micro-discharges is pointed out.

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Hamdan, A., Marinov, I., Rousseau, A. and Belmonte, T.
Journal of Physics D: Applied Physics, 47:055203
2014

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Leroy, M.-A., Bataille, A.M., Dkhil, B., Porcher, F., Barbier, A., Jacques, V.L.R., Lu, Y., Bellouard, C., Hauet, T., Ravy, S., Herrero-Martin, J., Gatel, C., Bouzehouane, K., Gukasov, A., Andrieu, S. and Tiusan, C.
Physical Review B - Condensed Matter and Materials Physics, 90(3)
2014

Equipe: Département P2M : Nanomagnétisme et Electronique de Spin

Bergeard, N., López-Flores, V., Halté, V., Hehn, M., Stamm, C., Pontius, N., Beaurepaire, E. and Boeglin, C.
Nature Communications, 5
2014

Equipe: Département P2M : Nanomagnétisme et Electronique de Spin

2013

Articles:

Hicks, J., Tejeda, A., Taleb-Ibrahimi, A., Nevius, M. S., Wang, F., Shepperd, K., Palmer, J., Bertran, F., Le Fèvre, P., Kunc, J., de Heer, W. A., Berger, C. and Conrad, E. H.
NATURE PHYSICS, 9(1):49-54
2013
ISSN: 1745-2473

Equipe: Département P2M : Surfaces et Spectroscopies

Dap, S., Hugon, R., Lacroix, D., de Poucques, L., Briançon, J.-L. and Bougdira., J.
Physics of Plasmas, 20:033703
2013

Resume: In this paper, an experimental investigation of dust particle agglomeration in a capacitively coupled RF discharge is reported. Carbonaceous particles are produced in an argon plasma using acetylene. As soon as the particle density becomes sufficient, dust density waves (DDWs) are spontaneously excited within the cathode sheath. Recently, it was proven that DDWs can significantly enhance the agglomeration rate between particles by transferring them a significant kinetic energy. Thus, it helps them to overcome Coulomb repulsion. The influence of this mechanism is studied from acetylene injection to the formation of very large agglomerates forming an organized structure after a few dozens of seconds. For this purpose, three diagnostic tools are used: extinction measurements to probe nanometer-sized particles, fast imaging for large agglomerates and a dust extraction technique developed for ex-situ analysis. (C) 2013 American Institute of Physics.

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Bieber, T., Glad, X., De Poucques, L, Hugon, R., Vasseur, J.-L. and Bougdira., J.
The Open Plasma Physics Journal, 6:32-43
2013

Resume: This paper deals with pure argon plasma studied in a magnetically enhanced inductively coupled reactor. Laser induced fluorescence technique was performed with an optical parametric oscillator laser on the 3d4F7/2 and 3d2G9/2 Ar+ metastable levels and on the (2P03/2)4s2 neutral metastable state to determine their relative densities. Langmuir probe was used as a complementary diagnostic to measure the electron energy distribution functions. When increasing the confinement magnetic field, the metastable state density collapses for all cited levels, by contrast with ne which is continuously growing. Calculations were carried out for neutral argon to explain this behaviour. The results show that the metastable population is depleted by electron-impact excitation and ionization, these loss processes becoming dominant compared to the metastable state creation term.

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Rougemaille, N., Montaigne, F., Canals, B., Hehn, M., Riahi, H., Lacour, D. and Toussaint, J.-C.
New Journal of Physics, 15
2013

Equipe: Département P2M : Nanomagnétisme et Electronique de Spin

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