Spectroscopy of phonons and spin torques in magnetic point contacts

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dc.creatorYanson, I. K.
dc.creatorNaidyuk, Yu. G.
dc.creatorBashlakov, D. L.
dc.creatorFisun, V. V.
dc.creatorBalkashin, O. P.
dc.creatorKorenivski, V.
dc.creatorShekhter, R. I.
dc.date2005-09-15
dc.date.accessioned2026-07-07T06:21:54Z
dc.date.available2026-07-07T06:21:54Z
dc.descriptionPhonon spectroscopy is used to investigate the mechanism of current-induced spin torques in nonmagnetic/ferromagnetic (N/F) point contacts. Magnetization excitations observed in the magneto-conductance of the point contacts are pronounced for diffusive and thermal contacts, where the electrons experience significant scattering in the contact region. We find no magnetic excitations in highly ballistic contacts. Our results show that impurity scattering at the N/F interface is the origin of the new single-interface spin torque effect.
dc.description4 pages, 5 figs., accepted for publication in PRL
dc.identifierhttps://arxiv.org/abs/cond-mat/0509396
dc.identifierhttp://arxiv.org/abs/cond-mat/0509396
dc.identifierPRL 95, 186602 (2005)
dc.identifierdoi:10.1103/PhysRevLett.95.186602
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/95752
dc.subjectMaterials Science
dc.subjectMesoscale and Nanoscale Physics
dc.titleSpectroscopy of phonons and spin torques in magnetic point contacts
dc.typetext

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