Phase Separation in the Double Perovskite Sr2FeNbO6-δ

Daniil Popov; Ruslan Batulin; Mikhail Cherosov; Farit Vagizov; Almaz Zinnatullin; Tatiana Chupakhina; Yuliya Deeva; Tanmoy Maiti; Rushana Eremina

doi:10.3390/magnetochemistry9100219

Magnetochemistry (Oct 2023)

Phase Separation in the Double Perovskite Sr2FeNbO6-δ

Daniil Popov,
Ruslan Batulin,
Mikhail Cherosov,
Farit Vagizov,
Almaz Zinnatullin,
Tatiana Chupakhina,
Yuliya Deeva,
Tanmoy Maiti,
Rushana Eremina

Affiliations

Daniil Popov: Zavoisky Physical-Technical Institute, Federal Research Center “Kazan Scientific Center of RAS”, 420029 Kazan, Russia
Ruslan Batulin: Institute of Physics, Kazan (Volga Region) Federal University, 420008 Kazan, Russia
Mikhail Cherosov: Institute of Physics, Kazan (Volga Region) Federal University, 420008 Kazan, Russia
Farit Vagizov: Institute of Physics, Kazan (Volga Region) Federal University, 420008 Kazan, Russia
Almaz Zinnatullin: Institute of Physics, Kazan (Volga Region) Federal University, 420008 Kazan, Russia
Tatiana Chupakhina: Institute of Solid State Chemistry of the Russian Academy of Sciences (UB), 620990 Yekaterinburg, Russia
Yuliya Deeva: Institute of Solid State Chemistry of the Russian Academy of Sciences (UB), 620990 Yekaterinburg, Russia
Tanmoy Maiti: Department of Materials Science and Engineering, Indian Institute of Technology, Kanpur 208016, India
Rushana Eremina: Zavoisky Physical-Technical Institute, Federal Research Center “Kazan Scientific Center of RAS”, 420029 Kazan, Russia

DOI: https://doi.org/10.3390/magnetochemistry9100219
Journal volume & issue: Vol. 9, no. 10
p. 219

Abstract

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The ceramic perovskite Sr2FeNbO6-δ was synthesized via the solution combustion precursor method. X-ray phase analysis showed that the sample is single-phase and does not contain impurities. The specific heat capacity and the Mössbauer spectra were measured for the Sr2FeNbO6-δ ceramic in the temperature range of 4–300 K. The observation of an asymmetric doublet in the Mössbauer spectra and the literature data on the magnetic susceptibility indicated the presence of two magnetic subsystems in Sr2FeNbO6-δ with antiferromagnetic exchange interactions. Based on the analysis of the temperature dependence of the specific heat capacity, we determined the Debye and Einstein temperatures.

Published in Magnetochemistry

ISSN: 2312-7481 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: http://www.mdpi.com/journal/magnetochemistry

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