Отправить статью по E-mail The 55Mn Spin Echo Test of Magnon BEC State in MnCO3
- Авторы: Bunkov Y.M.1, Klochkov A.V.1, Safin T.R.1, Safiullin K.R.1,2, Tagirov M.S.1,2
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Учреждения:
- Institute of Physics, Kazan Federal University
- Institute of Perspective Research, Academy of Sciences of the Republic of Tatarstan
- Выпуск: Том 48, № 7 (2017)
- Страницы: 625-633
- Раздел: Original Paper
- URL: https://ogarev-online.ru/0937-9347/article/view/247802
- DOI: https://doi.org/10.1007/s00723-017-0906-9
- ID: 247802
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Аннотация
The coherent quantum state of magnons—Bose–Einstein condensate (BEC) has been observed in several types of antiferromagnets. According to the Bose statistics of magnons, BEC appears when the magnon density exceeds the critical density NBEC and the magnon gas condenses to a quantum liquid. The BEC state is characterized by a coherent precession of the magnetization. In this paper, the first experiments showing the suppression of the spin echo signal by the magnon BEC is presented. These experiments confirm the coherence of magnetic excitations in the BEC state.
Об авторах
Yu. Bunkov
Institute of Physics, Kazan Federal University
Email: tirsafin@gmail.com
Россия, Kremlevskaya 18, Kazan
A. Klochkov
Institute of Physics, Kazan Federal University
Email: tirsafin@gmail.com
Россия, Kremlevskaya 18, Kazan
T. Safin
Institute of Physics, Kazan Federal University
Автор, ответственный за переписку.
Email: tirsafin@gmail.com
Россия, Kremlevskaya 18, Kazan
K. Safiullin
Institute of Physics, Kazan Federal University; Institute of Perspective Research, Academy of Sciences of the Republic of Tatarstan
Email: tirsafin@gmail.com
Россия, Kremlevskaya 18, Kazan; L. Bulachnaya 36a, Kazan
M. Tagirov
Institute of Physics, Kazan Federal University; Institute of Perspective Research, Academy of Sciences of the Republic of Tatarstan
Email: tirsafin@gmail.com
Россия, Kremlevskaya 18, Kazan; L. Bulachnaya 36a, Kazan
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