Magnetic properties of a GdCr3(BO3)4 single crystal

被引：10

作者：

Bludov, A. N. ^{[1
]}

Savina, Yu. O. ^{[1
]}

Pashchenko, V. A. ^{[1
]}

Gnatchenko, S. L. ^{[1
]}

Mal'tsev, V. V. ^{[2
]}

Kuzmin, N. N. ^{[2
]}

Leonyuk, N. I. ^{[2
]}

机构：

[1] NAS Ukraine, BI Verkin Inst Low Temp Phys & Engn BI, 47 Nauky Ave, UA-61103 Kharkov, Ukraine

[2] Moscow MV Lomonosov State Univ, Moscow 119991, Russia

来源：

LOW TEMPERATURE PHYSICS | 2018年 / 44卷 / 05期

关键词：

BORATES RCR3(BO3)(4) R; EARTH; SPECTRA;

D O I：

10.1063/1.5034153

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The temperature dependence of the magnetic susceptibility v (T) of the GdCr3(BO3)(4) single crystal was studied in the temperature range of 2-300K for two orientations of the external magnetic field: H parallel to c and H +/- c. It was established that gadolinium chromium borate is ordered antiferromagnetically at T-N = 7K. It was found that, at T > 10 K, the magnetic properties of the crystal are isotropic, which is characteristic of the pure spin states of Cr3+ and Gd3+ ions. It was demonstrated that the magnetic susceptibility chi(T) of the GdCr3(BO3)(4) compound at T > T-N is well described by a onedimensional spin model for a system of ferromagnetic chains of Cr3+ ions with ferromagnetic exchange 2J/k = -13.6K and antiferromagnetic interchain interaction of 2J'/ k = +0.72 K. The gadolinium subsystem is antiferromagnetically biased due to the exchange f-d-interaction, which gives theta(Gd) = 2: 8K. It was assumed that the GdCr3(BO3)(4) compound is an antiferromagnet with "easy-plane" type anisotropy in the magnetically ordered state. Published by AIP Publishing.

引用

页码：423 / 427

页数：5

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