Spin-dependent transport in magnetic sandwiches in the effective-mass approximation
A theory describing a spin-dependent transport of electrons through a thin metallic (or insulator) nonmagnetic layer sandwiched between two ferromagnets is developed in the ballistic regime and current-perpendicular-to-plane (CPP) geometry. The theory is based on the Landauer formalism and the trans...
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| Published in: | Semiconductor Physics Quantum Electronics & Optoelectronics |
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| Date: | 2006 |
| Main Authors: | , |
| Format: | Article |
| Language: | English |
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Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2006
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/121622 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Spin-dependent transport in magnetic sandwiches in the effective-mass approximation / V.F. Los’, V.N. Saltanov // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2006. — Т. 9, № 3. — С. 70-78. — Бібліогр.: 12 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862736084563132416 |
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| author | Los’, V.F. Saltanov, V.N. |
| author_facet | Los’, V.F. Saltanov, V.N. |
| citation_txt | Spin-dependent transport in magnetic sandwiches in the effective-mass approximation / V.F. Los’, V.N. Saltanov // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2006. — Т. 9, № 3. — С. 70-78. — Бібліогр.: 12 назв. — англ. |
| collection | DSpace DC |
| container_title | Semiconductor Physics Quantum Electronics & Optoelectronics |
| description | A theory describing a spin-dependent transport of electrons through a thin metallic (or insulator) nonmagnetic layer sandwiched between two ferromagnets is developed in the ballistic regime and current-perpendicular-to-plane (CPP) geometry. The theory is based on the Landauer formalism and the transmission amplitude for the electron Bloch waves with an arbitrary dispersion law travelling from one ferromagnet to another through a nonmagnetic spacer (metallic or insulator). The semiclassical (non-oscillating) part of the magnetoresistance ratio for a metallic spacer is considered in the effective-mass approximation for the sandwich band structure. The parameters defining the value of the giant magnetoresistance (GMR) effect are obtained. It is shown that the electron specular scattering on the interfaces may be the cause for the CPP GMR effect. The influence of the electronic structure on the CPP GMR effect has been studied numerically in the effective-mass approximation.
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| first_indexed | 2025-12-07T19:52:03Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-121622 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1560-8034 |
| language | English |
| last_indexed | 2025-12-07T19:52:03Z |
| publishDate | 2006 |
| publisher | Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| record_format | dspace |
| spelling | Los’, V.F. Saltanov, V.N. 2017-06-15T03:11:26Z 2017-06-15T03:11:26Z 2006 Spin-dependent transport in magnetic sandwiches in the effective-mass approximation / V.F. Los’, V.N. Saltanov // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2006. — Т. 9, № 3. — С. 70-78. — Бібліогр.: 12 назв. — англ. 1560-8034 PACS 72.25.-b, 75.47.Jn https://nasplib.isofts.kiev.ua/handle/123456789/121622 A theory describing a spin-dependent transport of electrons through a thin metallic (or insulator) nonmagnetic layer sandwiched between two ferromagnets is developed in the ballistic regime and current-perpendicular-to-plane (CPP) geometry. The theory is based on the Landauer formalism and the transmission amplitude for the electron Bloch waves with an arbitrary dispersion law travelling from one ferromagnet to another through a nonmagnetic spacer (metallic or insulator). The semiclassical (non-oscillating) part of the magnetoresistance ratio for a metallic spacer is considered in the effective-mass approximation for the sandwich band structure. The parameters defining the value of the giant magnetoresistance (GMR) effect are obtained. It is shown that the electron specular scattering on the interfaces may be the cause for the CPP GMR effect. The influence of the electronic structure on the CPP GMR effect has been studied numerically in the effective-mass approximation. The research described in this publication was made possible in part by Award #UP2-2117 of the U.S. Civilian Research & Development Foundation for the Independent States of the Former Soviet Union (CRDF). en Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України Semiconductor Physics Quantum Electronics & Optoelectronics Spin-dependent transport in magnetic sandwiches in the effective-mass approximation Article published earlier |
| spellingShingle | Spin-dependent transport in magnetic sandwiches in the effective-mass approximation Los’, V.F. Saltanov, V.N. |
| title | Spin-dependent transport in magnetic sandwiches in the effective-mass approximation |
| title_full | Spin-dependent transport in magnetic sandwiches in the effective-mass approximation |
| title_fullStr | Spin-dependent transport in magnetic sandwiches in the effective-mass approximation |
| title_full_unstemmed | Spin-dependent transport in magnetic sandwiches in the effective-mass approximation |
| title_short | Spin-dependent transport in magnetic sandwiches in the effective-mass approximation |
| title_sort | spin-dependent transport in magnetic sandwiches in the effective-mass approximation |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/121622 |
| work_keys_str_mv | AT losvf spindependenttransportinmagneticsandwichesintheeffectivemassapproximation AT saltanovvn spindependenttransportinmagneticsandwichesintheeffectivemassapproximation |