Photon generation in ferromagnetic point contacts
We show theoretically that a significant spin accumulation can occur in electric point contacts between two
 ferromagnetic electrodes with different magnetizations. Under appropriate conditions an inverse population of
 spin-split electronic levels results in stimulated emission of p...
Збережено в:
| Опубліковано в: : | Физика низких температур |
|---|---|
| Дата: | 2012 |
| Автори: | , , |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2012
|
| Теми: | |
| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/117976 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Photon generation in ferromagnetic point contacts / A.M. Kadigrobov, R.I. Shekhter, M. Jonson // Физика низких температур. — 2012. — Т. 38, № 12. — С. 1439–1445. — Бібліогр.: 25 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862532941735788544 |
|---|---|
| author | Kadigrobov, A.M. Shekhter, R.I. Jonson, M. |
| author_facet | Kadigrobov, A.M. Shekhter, R.I. Jonson, M. |
| citation_txt | Photon generation in ferromagnetic point contacts / A.M. Kadigrobov, R.I. Shekhter, M. Jonson // Физика низких температур. — 2012. — Т. 38, № 12. — С. 1439–1445. — Бібліогр.: 25 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | We show theoretically that a significant spin accumulation can occur in electric point contacts between two
ferromagnetic electrodes with different magnetizations. Under appropriate conditions an inverse population of
spin-split electronic levels results in stimulated emission of photons in the presence of a resonant electromagnetic
field. The intensity of the emitted radiation can be several orders of magnitude higher than in typical semiconductor
laser materials for two reasons. (1) The density of conduction electrons in a metal point conduct is much
larger than in semiconductors. (2) The strength of the coupling between the electron spins and the electromagnetic
field that is responsible for the radiative spin-flip transitions is set by the magnetic exchange energy and can
therefore be very large as suggested by Kadigrobov et al. [Europhys. Lett. 67, 948 (2004)].
|
| first_indexed | 2025-11-24T04:19:40Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-117976 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-24T04:19:40Z |
| publishDate | 2012 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Kadigrobov, A.M. Shekhter, R.I. Jonson, M. 2017-05-27T18:34:26Z 2017-05-27T18:34:26Z 2012 Photon generation in ferromagnetic point contacts / A.M. Kadigrobov, R.I. Shekhter, M. Jonson // Физика низких температур. — 2012. — Т. 38, № 12. — С. 1439–1445. — Бібліогр.: 25 назв. — англ. 0132-6414 PACS: 73.40.–c https://nasplib.isofts.kiev.ua/handle/123456789/117976 We show theoretically that a significant spin accumulation can occur in electric point contacts between two
 ferromagnetic electrodes with different magnetizations. Under appropriate conditions an inverse population of
 spin-split electronic levels results in stimulated emission of photons in the presence of a resonant electromagnetic
 field. The intensity of the emitted radiation can be several orders of magnitude higher than in typical semiconductor
 laser materials for two reasons. (1) The density of conduction electrons in a metal point conduct is much
 larger than in semiconductors. (2) The strength of the coupling between the electron spins and the electromagnetic
 field that is responsible for the radiative spin-flip transitions is set by the magnetic exchange energy and can
 therefore be very large as suggested by Kadigrobov et al. [Europhys. Lett. 67, 948 (2004)]. Financial support from the European Commission
 (FP7-ICT-FET-225955 STELE), the Swedish VR, and the
 Korean WCU program funded by MEST/NFR (R31-2008-
 000-10057-0) is gratefully acknowledged. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Наноструктуры при низких температурах Photon generation in ferromagnetic point contacts Article published earlier |
| spellingShingle | Photon generation in ferromagnetic point contacts Kadigrobov, A.M. Shekhter, R.I. Jonson, M. Наноструктуры при низких температурах |
| title | Photon generation in ferromagnetic point contacts |
| title_full | Photon generation in ferromagnetic point contacts |
| title_fullStr | Photon generation in ferromagnetic point contacts |
| title_full_unstemmed | Photon generation in ferromagnetic point contacts |
| title_short | Photon generation in ferromagnetic point contacts |
| title_sort | photon generation in ferromagnetic point contacts |
| topic | Наноструктуры при низких температурах |
| topic_facet | Наноструктуры при низких температурах |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/117976 |
| work_keys_str_mv | AT kadigrobovam photongenerationinferromagneticpointcontacts AT shekhterri photongenerationinferromagneticpointcontacts AT jonsonm photongenerationinferromagneticpointcontacts |