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...
Збережено в:
| Дата: | 2006 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2006
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| Назва видання: | Semiconductor Physics Quantum Electronics & Optoelectronics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/121622 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | 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. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1216222017-06-16T03:03:57Z Spin-dependent transport in magnetic sandwiches in the effective-mass approximation Los’, V.F. Saltanov, V.N. 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. 2006 Article 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 http://dspace.nbuv.gov.ua/handle/123456789/121622 en Semiconductor Physics Quantum Electronics & Optoelectronics Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| 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. |
| format |
Article |
| author |
Los’, V.F. Saltanov, V.N. |
| spellingShingle |
Los’, V.F. Saltanov, V.N. Spin-dependent transport in magnetic sandwiches in the effective-mass approximation Semiconductor Physics Quantum Electronics & Optoelectronics |
| author_facet |
Los’, V.F. Saltanov, V.N. |
| author_sort |
Los’, V.F. |
| title |
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_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_sort |
spin-dependent transport in magnetic sandwiches in the effective-mass approximation |
| publisher |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| publishDate |
2006 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/121622 |
| 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. |
| series |
Semiconductor Physics Quantum Electronics & Optoelectronics |
| work_keys_str_mv |
AT losvf spindependenttransportinmagneticsandwichesintheeffectivemassapproximation AT saltanovvn spindependenttransportinmagneticsandwichesintheeffectivemassapproximation |
| first_indexed |
2023-10-18T20:39:54Z |
| last_indexed |
2023-10-18T20:39:54Z |
| _version_ |
1796150791804813312 |