The Evolution of the Magnetic Properties of Iron Borate Single Crystals Doped with Gallium

Author:

Snegirev N. I.1,Bogach A. V.2,Lyubutin I. S.1,Chuev M. A.3,Yagupov S. V.4,Mogilenec Yu. A.4,Selezneva K. A.4,Strugatsky M. B.4

Affiliation:

1. Shubnikov Institute of Crystallography, Federal Scientific Research Center Crystallography and Photonics, Russian Academy of Sciences

2. Prokhorov Institute of General Physics, Russian Academy of Sciences

3. Valiev Institute of Physics and Technology, Russian Academy of Sciences

4. Institute of Physics and Technology, V.I. Vernadsky Crimean Federal University

Abstract

Highly perfect FeBO3 and Fe0.91Ga0.09BO3 single crystals were studied in a wide temperature range using SQUID magnetometry. A theoretical model describing the temperature and field dependences of the magnetization of single crystals has been developed. It is found that even a small concentration of gallium,which is a diamagnetic impurity, substantially affects the magnetic properties of single FeBO3 crystals. In par-ticular, the Fe0.91Ga0.09BO3 crystal differs from the pure FeBO3 phase in by a lower magnetic phase transition temperature and a higher antiferromagnetic susceptibility at low temperatures.

Publisher

The Russian Academy of Sciences

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