Goldstone mode of a magnon Bose−Einstein condensate 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:
- Kazan Federal University
- Institute of Perspective Research
- Выпуск: Том 106, № 10 (2017)
- Страницы: 677-681
- Раздел: Condensed Matter
- URL: https://ogarev-online.ru/0021-3640/article/view/160707
- DOI: https://doi.org/10.1134/S0021364017220076
- ID: 160707
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Аннотация
The low-frequency phase modulation of a radio-frequency field is used to excite a low-frequency collective mode in the Bose−Einstein condensate (BEC) of quasinuclear magnons in an antiferromagnetic material with the Suhl−Nakamura interaction. This oscillation mode is similar to the Goldstone torsional mode observed in antiferromagnetic superfluid 3He–B. The results clearly demonstrate the existence of the BEC in the systems under study.
Об авторах
Yu. Bunkov
Kazan Federal University
Автор, ответственный за переписку.
Email: yury.bunkov@neel.cnrs.fr
Россия, Kazan, 420008
A. Klochkov
Kazan Federal University
Email: yury.bunkov@neel.cnrs.fr
Россия, Kazan, 420008
T. Safin
Kazan Federal University
Email: yury.bunkov@neel.cnrs.fr
Россия, Kazan, 420008
K. Safiullin
Kazan Federal University; Institute of Perspective Research
Email: yury.bunkov@neel.cnrs.fr
Россия, Kazan, 420008; Kazan, 420111
M. Tagirov
Kazan Federal University; Institute of Perspective Research
Email: yury.bunkov@neel.cnrs.fr
Россия, Kazan, 420008; Kazan, 420111
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