Effect of annealing temperature on the magnetization behavior of LaFe0.5Cr0.5O3

Author:

Cao Huanhuan1ORCID,Li Huijing1ORCID,Mo Jajun1ORCID,Lu Zeyi1ORCID,Xia Yanfang1ORCID,Liu Min12ORCID

Affiliation:

1. College of Nuclear Science and Technology, University of South China, Hengyang 421001, P. R. China

2. Zhuhai Tsinghua University Research Institute Innovation Center, 101 University Ave, Tangjiawan, Zhuhai 519000, P. R. China

Abstract

LaFe[Formula: see text]Cr[Formula: see text]O3 was synthesized using the sol–gel method and subsequently annealed at [Formula: see text]C and [Formula: see text]C. Magnetization curves and Mössbauer spectra were employed to evaluate the macroscopic magnetism of the samples at 300[Formula: see text]K. The results showed that coercivity increased with higher annealing temperatures. Notably, magnetic measurements of the LFCO-900 sample revealed an unusual trend in the M–T curve between 50[Formula: see text]K and 150[Formula: see text]K, likely due to annealing-induced changes in magnetic entropy. Annealing temperature significantly influences LFCO’s magnetic properties. Monte Carlo simulations modeled magnetization’s temperature dependence in disordered systems under varying magnetic field strengths, aligning with observations in LFCO-750. These insights are crucial for furthering understanding of perovskite materials’ physical properties and for enhancing the magnetic entropy effect in such systems, thereby increasing their practical application potential.

Funder

National Natural Science Foundation of China

National Undergraduate Innovation and Entrepreneurship Training Program Support Projects of China

Natural Science Foundation of Hunan Province

Publisher

World Scientific Pub Co Pte Ltd

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