Отправить статью по E-mail Electron Structure and Optical Properties of the Mn1.8Co1.2Al Alloy and Spin Gapless Semiconductor State
- Авторы: Shreder E.I.1, Makhnev A.A.1, Lukoyanov A.V.1,2, Marchenkov V.V.1,2
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Учреждения:
- Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
- Ural Federal University Named after the First President of Russia B.N. Yeltsin, Institute of Natural Sciences and Mathematics
- Выпуск: Том 119, № 11 (2018)
- Страницы: 1068-1072
- Раздел: Electrical and Magnetic Properties
- URL: https://journals.rcsi.science/0031-918X/article/view/167927
- DOI: https://doi.org/10.1134/S0031918X18110194
- ID: 167927
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Аннотация
This paper studies the optical properties of the Mn1.8Co1.2Al alloy, whose composition is close to that of spin gapless Mn2CoAl semiconductor. Our investigation found the absence of intraband absorption contribution, which is an anomalous behavior of optical properties of the alloy. The presence of intense interband absorption in the IR range of spectrum indicates the existence of low-energy gap in the band spectrum of the alloy, which was found by electron structure calculations of the Mn1.75Co1.25Al alloy.
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Об авторах
E. Shreder
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Автор, ответственный за переписку.
Email: shreder@imp.uran.ru
Россия, Ekaterinburg, 620108
A. Makhnev
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: shreder@imp.uran.ru
Россия, Ekaterinburg, 620108
A. Lukoyanov
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University Named after the First President of Russia B.N. Yeltsin, Institute of Natural Sciences and Mathematics
Email: shreder@imp.uran.ru
Россия, Ekaterinburg, 620108; Ekaterinburg, 620002
V. Marchenkov
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University Named after the First President of Russia B.N. Yeltsin, Institute of Natural Sciences and Mathematics
Email: shreder@imp.uran.ru
Россия, Ekaterinburg, 620108; Ekaterinburg, 620002
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