Magnetic and orbital blocking in Ni nanocontacts

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dc.creatorJacob, David
dc.creatorFernández-Rossier, J.
dc.creatorPalacios, J. J.
dc.date2004-06-10
dc.date2005-04-08
dc.date.accessioned2026-07-07T02:58:34Z
dc.date.available2026-07-07T02:58:34Z
dc.descriptionWe address the fundamental question of whether magneto-resistance (MR) of atomic-sized contacts of Nickel is very large because of the formation of a domain wall (DW) at the neck. Using {\em ab initio} transport calculations we find that, as in the case of non-magnetic electrodes, transport in Ni nanocontacts depends very much on the orbital nature of the electrons. Our results are in agreement with several experiments in the average value of the conductance. On the other hand, contrary to existing claims, DW scattering does {\em not} account for large MR in Ni nanocontacts.
dc.description5 pages, 3 Figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0406249
dc.identifierhttp://arxiv.org/abs/cond-mat/0406249
dc.identifierPhys. Rev. B 71, 220403(R) (2005)
dc.identifierdoi:10.1103/PhysRevB.71.220403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24150
dc.subjectMaterials Science
dc.subjectMesoscale and Nanoscale Physics
dc.titleMagnetic and orbital blocking in Ni nanocontacts
dc.typetext

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