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Observation of spontaneous spin reorientation in Nd1-x Dy (x) Fe-3(BO3)(4) ferroborates with a competitive R-Fe exchangeстатья
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: 18 июля 2013 г.
- Авторы: Popov Yu F., Kadomtseva A.M., Vorob'ev G.P., Mukhin A.A., Ivanov V.Yu, Kuz'menko A.M., Prokhorov A.S., Bezmaternykh L.N., Temerov V.L.
- Журнал: JETP Letters
- Том: 89
- Номер: 7
- Год издания: 2009
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 345
- Последняя страница: 351
- DOI: 10.1134/S002136400907008X
- Аннотация: The magnetic, magnetoelectric, and magnetoelastic properties of DyFe3(BO3)(4) single crystals and the Nd0.75Dy0.25Fe3(BO3)(4) substituted compound with the competitive Nd-Fe and Dy-Fe exchange interactions have been investigated in magnetic fields up to 210 kOe. It has been shown that the antiferromagnetic state in Nd0.75Dy0.25Fe3(BO3)(4) below the N,el temperature is easy-plane and a spontaneous spin-reorientation transition to a uniaxial state occurs near 25 K. Anomalies are observed in various physical characteristics in a spin-flop transition induced by the magnetic field along the trigonal axis. The H-T phase diagrams are constructed; they are in good agreement with a simple model taking into account the anisotropy of the exchange splitting and g factors of the ground doublets of the Dy3+ and Nd3+ ions. The features of the magnetoelectric effect in various magnetic phases have been studied. Spontaneous electric polarization has been revealed in the region of the existence of an easy-plane antiferromagnetic state in the substituted compound. A qualitative theoretical justification of the possibility of the appearance of the spontaneous spin-reorientation transition in the Nd0.75Dy0.25Fe3(BO3)(4) substituted compound is given.
- Добавил в систему: Воробьев Геннадий Петрович