Magnitnye svoystva dvoynogo perovskita Sr2CrNbO6

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A double perovskite Sr2CrNbO6 powder compound was studied by using X-ray diffraction, AC and DC magnetization, and ESR measurements. Two transitions in antiferromagnetically ordered regimes were observed through magnetization measurements at T = 5 and 2 K and were confirmed by the linear dependence of the magnetization on the applied magnetic field at these temperatures, approximations of the temperature dependence of the ESR linewidth, and AC magnetization. The zero field cooling curve was approximated by Bonner–Fisher law for quasi one dimensional chain with the exchange integral J/kB = 1 K between chromium spins. An approximation of linear part of magnetic susceptibility temperature dependence was performed using Curie–Weiss law. To describe the obtained effective moment μeff = 3.577μB, the presence Cr3+ and Cr4+ ions is estimated at a respective ratio about 0.8 : 0.2.

作者简介

D. Popov

Zavoisky Physical-Technical Institute, Federal Research Center Kazan Scientific Center, Russian Academy of Sciences

Email: reremina@yandex.ru
420029, Kazan, Russia

R. Batulin

Kazan (Volga Region) Federal University Department of Physics

Email: reremina@yandex.ru
420008, Kazan, Russia

M. Cherosov

Kazan (Volga Region) Federal University Department of Physics

Email: reremina@yandex.ru
420008, Kazan, Russia

I. Yatsyk

Zavoisky Physical-Technical Institute, Federal Research Center Kazan Scientific Center, Russian Academy of Sciences; Kazan (Volga Region) Federal University Department of Physics

Email: reremina@yandex.ru
420029, Kazan, Russia; 420008, Kazan, Russia

T. Chupakhina

Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences

Email: reremina@yandex.ru
620990, Yekaterinburg, Russia

Yu. Deeva

Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences

Email: reremina@yandex.ru
620990, Yekaterinburg, Russia

I. Fazlizhanov

Zavoisky Physical-Technical Institute, Federal Research Center Kazan Scientific Center, Russian Academy of Sciences

Email: reremina@yandex.ru
420029, Kazan, Russia

R. Eremina

Zavoisky Physical-Technical Institute, Federal Research Center Kazan Scientific Center, Russian Academy of Sciences; Kazan (Volga Region) Federal University Department of Physics

Email: reremina@yandex.ru
420029, Kazan, Russia; 420008, Kazan, Russia

T. Maiti

Department of Materials Science and Engineering Indian Institute of Technology Kanpur

编辑信件的主要联系方式.
Email: reremina@yandex.ru
208016, Kanpur, UP, India

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