User menu

Accès à distance ? S'identifier sur le proxy UCLouvain

Quantum conductance in electrodeposited nanocontacts and magnetoresistance measurements

Primary tabs

Elhoussine, F Encinas, Armando [UCL] Mátéfi-Tempfli, Stefan [UCL] Piraux, Luc [UCL]

We present conductance and magnetoresistance measurements in magnetic Ni-Ni and Co-Ni nanocontacts prepared by electrodeposition within the pores of a track-etched polymer membrane. At room temperature, Ni-Ni constrictions show broad quantization plateaus of conductance during their dissolution into units of e(2)/h, as expected for ferromagnetic ballistic nanocontacts. Additionally, positive and negative magnetoresistance has been measured in Co-Ni nanocontacts. (C) 2003 American Institute of Physics.

Document type Article de périodique (Journal article) – Article de recherche
Publication date 2003
Language Anglais
Journal information "Journal of Applied Physics" - Vol. 93, no. 10, p. 8567-8569 (2003)
Peer reviewed yes
Publisher Amer Inst Physics (Melville)
issn 0021-8979
e-issn 1089-7550
Affiliation UCL - FSA/MAPR - Département des sciences des matériaux et des procédés
Links
  1. García N., Rohrer H., Saveliev I. G., Zhao Y.-W., Negative and Positive Magnetoresistance Manipulation in an Electrodeposited Nanometer Ni Contact, 10.1103/physrevlett.85.3053
  2. Chopra Harsh Deep, Hua Susan Z., Ballistic magnetoresistance over 3000% in Ni nanocontacts at room temperature, 10.1103/physrevb.66.020403
  3. Tatara G., Zhao Y.-W., Muñoz M., García N., Domain Wall Scattering Explains 300% Ballistic Magnetoconductance of Nanocontacts, 10.1103/physrevlett.83.2030
  4. Labaye Y., Berger L., Coey J. M. D., Domain walls in ferromagnetic nanoconstriction, 10.1063/1.1461065
  5. Garcı́a N., Qiang G. G., Saveliev I. G., Balistic magnetoresistance in nanocontacts electrochemically grown between macro- and microscopic ferromagnetic electrodes, 10.1063/1.1459108
  6. N. Papanikolaou, cond-mat/021055 (2002).
  7. Fert A, Piraux L, Magnetic nanowires, 10.1016/s0304-8853(99)00375-3
  8. Boussaad S., Tao N. J., Atom-size gaps and contacts between electrodes fabricated with a self-terminated electrochemical method, 10.1063/1.1465128
  9. Elhoussine F., Mátéfi-Tempfli S., Encinas A., Piraux L., Conductance quantization in magnetic nanowires electrodeposited in nanopores, 10.1063/1.1503400
  10. García N., Muñoz M., Osipov V.V., Ponizovskaya E.V., Qian G.G., Saveliev I.G., Zhao Y.-W., Ballistic magnetoresistance in different nanocontact configurations: a basis for future magnetoresistance sensors, 10.1016/s0304-8853(01)00713-2
Bibliographic reference Elhoussine, F ; Encinas, Armando ; Mátéfi-Tempfli, Stefan ; Piraux, Luc. Quantum conductance in electrodeposited nanocontacts and magnetoresistance measurements. In: Journal of Applied Physics, Vol. 93, no. 10, p. 8567-8569 (2003)
Permanent URL http://hdl.handle.net/2078.1/41032