Magnetism and structure of Ni2MnBO5 ludwigite

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:402

Article

Moshkina, Evgeniya^1,2  Sofronova, Svetlana¹  Veligzhanin, Alexey³  Molokeev, Maxim^1,4  Nazarenko, Ilya¹  Eremin, Evgeniy^1,5  Bezmaternykh, Leonard¹ 

[1] LV Kirensky Inst Phys SB RAS, Krasnoyarsk 660036, Russia

[2] Siberian State Aerosp Univ, Krasnoyarsk 660037, Russia

[3] Natl Res Ctr, Kurchatov Inst, Moscow 123182, Russia

[4] Far Eastern State Transport Univ, Khabarovsk 680021, Russia

[5] Siberian Fed Univ, Krasnoyarsk 660041, Russia

关键词: Ludwigites;    Crystal structure;    Antiferromagnetic;    Indirect coupling model;   

DOI  :  10.1016/j.jmmm.2015.11.033

来源: Elsevier

【 摘 要 】

Single crystals of ludwigite Ni2MnBO5 were synthesized by flux growth technique. The detailed structural and magnetic characterizations of the synthesized samples have been carried out. The cations composition of the studied crystal was determined using X-ray diffraction and EXAFS technique, the resulting composition is differ from the content of the initial Mn2O3-NiO components of flux. Magnetic susceptibility measurements and the calculations of the exchange integrals in frameworks of indirect coupling model revealed strong antiferromagnetic interactions and appearance of magnetic ordering phase at the temperature T=85 K. The hypothesis of the existence of several magnetic subsystems was supposed. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

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