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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pankrats A. I., Sablina K. A., Velikanov D. A., Vorotynov A. M., Bayukov O. A., Eremin A. V., Molokeev M. S., Popkov S. I., Krasikov A. A.
Заглавие : Magnetic and dielectric properties of the PbFeBO4 single crystal
Место публикации : J. Magn. Magn. Mater.: Elsevier Science, 2014. - Vol. 353. - P.23 – 28. - ISSN 0304-8853, DOI 10.1016/j.jmmm.2013.10.018. - ISSN 1873-4766
Примечания : Cited References: 21. - This work was supported by RFBR, Grant no. 13-02-00897
Предметные рубрики: HEMATITE
Ключевые слова (''Своб.индексиров.''): single crystal growth--magnetic susceptibility--magnetic phase transition--antiferromagnetic order--dielectric permittivity--magnetoelectric effect
Аннотация: PbFeBO4 single crystals up to 4x2.5x0.5 mm3 in size were grown by spontaneous crystallization from a solution in a melt and their magnetic and dielectric properties were investigated.The high Neel temperature TN=114 K and the absence of the broad maximum of susceptibility above the Neel temperature suggest that the PbFeBO4 crystal is a three-dimensional antiferromagnet.The magnetic susceptibility anisotropy in the ordered state indicates that the antiferromagnetic vector is directed along the orthorhombic c axis. The anomalies of dielectric permittivities ε' and ε″ were observed in both polycrystalline and single-crystal samples within thetemperature ranges where the short-and long-range magnetic orders are established.This confirms the correlation between the magnetic and electric subsystems in the crystal.
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