|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Interplay of rare-earth and transition-metal subsystems in Cu3Yb(SeO3)2O2Clстатья
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: 10 декабря 2017 г.
- Авторы: Markina M.M., Zakharov K.V., Ovchenkov E.A., Berdonosov P.S., Dolgikh V.A., Kuznetsova E.S., Olenev A.V., Klimin S.A., Kashchenko M.A., Budkin I.V., Yatsyk I.V., Demidov A.A., Zvereva E.A., Vasiliev A.N.
- Журнал: Physical Review B
- Том: 96
- Год издания: 2017
- Издательство: American Physical Society
- Местоположение издательства: United States
- Первая страница: 134422
- DOI: 10.1103/PhysRevB.96.134422
- Аннотация: We present the synthesis and the experimental and theoretical study of the new member of the francisite family, Cu3Yb(SeO3)2O2Cl. The compound reaches an antiferromagnetic order at TN = 36.7 K and experiences first-order spin-reorientation transition to weakly ferromagnetic phase at TR = 8.7 K evidenced in specific heat Cp and magnetic susceptibility χ measurements. Distinctly different magnetization loops in T <TR and TR <T < TN temperature ranges reflect the interplay of rare-earth and transition-metal subsystems. At low temperatures, the saturation magnetization Ms ∼ 5.2μB is reached in pulsed magnetic-field measurements. The electron spin resonance data reveal the complicated character of the absorption line attributed to response from both copper and ytterbium ions. Critical broadening of the linewidth at the phase transitions points to quasi-two-dimensional character of the magnetic correlations. The spectroscopy of Yb3+ ions evidences splitting of the lowest-energy Kramers doublet of 2F5/2 excited multiplet at TR <T <TN while the ground Kramers doublet splits only at T <TR. We describe the magnetic properties both above and below the spin-reorientation transition in the framework of a unified approach based on the mean-field approximation and crystal-field calculations.
- Добавил в систему: Васильев Александр Николаевич