Отправить статью по E-mail Dynamic Polarization and Relaxation of 75As Nuclei in Silicon at High Magnetic Field and Low Temperature
- Авторы: Järvinen J.1, Ahokas J.1, Sheludiakov S.1, Vainio O.1, Zvezdov D.1,2, Lehtonen L.1, Vlasenko L.3, Vasiliev S.1
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Учреждения:
- Wihuri Physical Laboratory, Department of Physics and Astronomy, University of Turku
- Institute of Physics, Kazan Federal University
- Ioffe Institute, Russian Academy of Sciences
- Выпуск: Том 48, № 5 (2017)
- Страницы: 473-483
- Раздел: Original Paper
- URL: https://ogarev-online.ru/0937-9347/article/view/247692
- DOI: https://doi.org/10.1007/s00723-017-0875-z
- ID: 247692
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Аннотация
We present the results of experiments on dynamic nuclear polarization and relaxation of 75As in silicon crystals. Experiments are performed in strong magnetic fields of 4.6 T and temperatures below 1 K. At these conditions donor electron spins are fully polarized, and the allowed and forbidden electron spin resonance transitions are well resolved. We demonstrate effective nuclear polarization of 75As nuclei via the Overhauser effect on the time scale of several hundred seconds. Excitation of the forbidden transitions leads to a polarization through the solid effect. The relaxation rate of donor nuclei has strong temperature dependence characteristic of Orbach process.
Об авторах
J. Järvinen
Wihuri Physical Laboratory, Department of Physics and Astronomy, University of Turku
Автор, ответственный за переписку.
Email: jaanja@utu.fi
Финляндия, Turku, 20014
J. Ahokas
Wihuri Physical Laboratory, Department of Physics and Astronomy, University of Turku
Email: jaanja@utu.fi
Финляндия, Turku, 20014
S. Sheludiakov
Wihuri Physical Laboratory, Department of Physics and Astronomy, University of Turku
Email: jaanja@utu.fi
Финляндия, Turku, 20014
O. Vainio
Wihuri Physical Laboratory, Department of Physics and Astronomy, University of Turku
Email: jaanja@utu.fi
Финляндия, Turku, 20014
D. Zvezdov
Wihuri Physical Laboratory, Department of Physics and Astronomy, University of Turku; Institute of Physics, Kazan Federal University
Email: jaanja@utu.fi
Финляндия, Turku, 20014; Kazan, 420008
L. Lehtonen
Wihuri Physical Laboratory, Department of Physics and Astronomy, University of Turku
Email: jaanja@utu.fi
Финляндия, Turku, 20014
L. Vlasenko
Ioffe Institute, Russian Academy of Sciences
Email: jaanja@utu.fi
Россия, St. Petersburg, 194021
S. Vasiliev
Wihuri Physical Laboratory, Department of Physics and Astronomy, University of Turku
Email: jaanja@utu.fi
Финляндия, Turku, 20014
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