Magnetic and Magnetodielectric Properties of Ho<Subscript>0.5</Subscript>Nd<Subscript>0.5</Subscript>Fe<Subscript>3</Subscript>(BO<Subscript>3</Subscript>)<Subscript>4</Subscript>期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Magnetic and Magnetodielectric Properties of Ho0.5Nd0.5Fe3(BO3)4

Authors:	I. A. Gudim A. A. Demidov E. V. Eremin D. K. Shukla

Affiliation:	1.Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch,Russian Academy of Sciences,Krasnoyarsk,Russia;2.Bryansk State Technical University,Bryansk,Russia;3.Siberian State University of Science and Technology,Krasnoyarsk,Russia;4.UGC-DAE Consortium for Scientific Research,Indore,India

Abstract:	The magnetic and magnetodielectric properties of Ho_0.5Nd_0.5Fe₃(BO₃)₄ ferroborate with the competing Ho–Fe and Nd–Fe exchange couplings have been experimentally and theoretically investigated. Step anomalies in the magnetization curves at the spin-reorientation transition induced by the magnetic field B ║ c have been found. The spontaneous spin-reorientation transition temperature T_SR ≈ 8 K has been refined. The measured magnetic properties and observed features are interpreted using a single theoretical approach based on the molecular field approximation and calculations within the crystal field model of the rare-earth ion. Interpretation of the experimental data includes determination of the crystal field parameters for Ho³⁺ and Nd³⁺ ions in Ho_0.5Nd_0.5Fe₃(BO₃)₄ and parameters of the Ho–Fe and Nd–Fe exchange couplings.

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