The theory of GMR and TMR in segmented magnetic nanowires
| dc.creator | Zhuravlev, M. Ye. | |
| dc.creator | Lutz, H. O. | |
| dc.creator | Vedyayev, A. V. | |
| dc.date | 2000-02-21 | |
| dc.date.accessioned | 2026-07-07T02:36:49Z | |
| dc.date.available | 2026-07-07T02:36:49Z | |
| dc.description | We calculate the resistivity and Giant Magnetoresistance (GMR) of a segmented nanowire consisting of two ferromagnetic segments separated by a thin paramagnetic spacer. The quantization of the electron motion due to the small nanowire cross-section is taken into account; s-d electron scattering gives rise to different mean free paths for spin-up and spin-down s-electrons. The calculated resistivity and GMR oscillate as a function of nanowire cross-section due to the difference in Fermi momenta of d-electrons with opposite spins. The GMR can reach values much higher than those which are obtained for "wires" of infinite cross-section (i.e., a multilayer). Similarly we have calculated the Tunneling Magnetoresistance (TMR) by replacing the paramagnetic spacer with an insulator spacer. | |
| dc.description | 9 pages, 8 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0002325 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0002325 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/16066 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | The theory of GMR and TMR in segmented magnetic nanowires | |
| dc.type | text |