Co5/3Nb1/3BO4: A new cobalt oxyborate with a complex magnetic structure

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1016/j.jmmm.2021.168056

Ключевые слова: ferrimagnet, warwickites

Аннотация: Needle-shape single crystals of Co5/3Nb1/3BO4 warwickite were grown using the flux technique. X-ray diffraction measurements have revealed an orthorhombic structure (Sp. Gr. Pbnm) where the octahedral M1 site is occupied by a mixture of Co2+/Nb5+ ions and the M2 site is exclusively filled by Co2+ ions. Using dc magnetization measurements it was established that the new material undergoes two magnetic transitions: an antiferromagnetic transition at TN1 = 27 K and a ferrimagnetic one at TN2 = 14 K, below which a hysteresis cycle opens. Both magnetic transitions are marked by anomalies in the specific heat. High magnetic anisotropy with c-axis as a hard magnetization direction was detected. © 2021 Elsevier B.V.

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Издание

Журнал: Journal of Magnetism and Magnetic Materials

Выпуск журнала: Vol. 534

Номера страниц: 168056

ISSN журнала: 03048853

Издатель: Elsevier B.V.

Персоны

Kazak N.V (FRC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia)
Belskaya N.A. (Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk, Russia)
Moshkina E.M. (FRC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia)
Bezmaternykh L.N. (FRC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia)
Vasiliev A.D. (FRC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia)
Bartolome J. (Univ Zaragoza, CSIC, Inst Nanociencia & Mat Aragon INMA, Zaragoza 50009, Spain; Dept Fis Mat Condensada, Zaragoza 50009, Spain)
Arauzo A. (Univ Zaragoza, CSIC, Inst Nanociencia & Mat Aragon INMA, Zaragoza 50009, Spain; Dept Fis Mat Condensada, Zaragoza 50009, Spain; Univ Zaragoza, Serv Medidas Fis, Zaragoza, Spain)
Velikanov D.A. (FRC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia)
Gavrilkin S.Yu (RAS, PN Lebedev Phys Inst, Moscow 119991, Russia)
Gorev M.V (FRC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia)
Patrin G.S. (FRC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia)
Ovchinnikov S.G. (FRC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia)

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