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High temperature magnetoelectricity of terbium aluminum borate: the role of excited states of the rare earth ionстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 16 апреля 2014 г.
- Авторы: Kadomtseva A.M., Popov Yu F., Vorob'ev G.P., Kostyuchenko N.V., Popov A.I., Mukhin A.A., Ivanov V.Yu, Bezmaternykh L.N., Gudim I.A., Temerov V.L., Pyatakov A.P., Zvezdin A.K.
- Журнал: Physical Review B
- Том: 89
- Год издания: 2014
- Издательство: American Physical Society
- Местоположение издательства: United States
- Первая страница: 014418
- Последняя страница: 014424
- DOI: 10.1103/PhysRevB.89.014418
- Аннотация: Rare earth aluminum borates RAl3(BO3)4 are the recently revealed class of magnetoelectric materials with giant values of magnetoinduced electric polarization. However the low temperatures at which the magnetoelectric polarization is observed hinder the practical application of rare earth borates. We have observed for the rst time in TbAl3(BO3)4 the magnetoelectric polarization with anomalous temperature dependence: electric polarization induced by in-plane magnetic eld (P||a;H_|_c-axis) which is small at low temperatures (4K) remarkably increases by almost an order of magnitude at high temperatures (150-300K). The observed nonmonotonic temperature behavior of the eld induced polarization including a change of its sign at 65 - 70K is attributed to the competition of the ground and excited crystal- eld states of Tb3+ ions. The quantum theory analysis involving the combination of analytical and numerical methods has enabled to describe quantitatively the observed magnetic and magnetoelectric properties of TbAl3(BO3)4 which can be considered as promising magnetoelectric and electro-magnetooptical material.
- Добавил в систему: Воробьев Геннадий Петрович