Issue 24, 2020

Observation of spin-glass like behavior in the layered oxyselenides La2O3(Mn1−xCox)2Se2

Abstract

We have synthesized a new series of layered oxyselenides La2O3(Mn1−xCox)2Se2 through a solid state reaction method. Their structure and physical properties were studied through powder X-ray diffraction, electric transport measurements, absorption spectroscopy, bulk magnetization and specific heat experiments. These compounds crystallize in layered structures with the space group I4/mmm. All the samples present semiconducting or insulating behavior with the activation energy ranging from 0.134 eV to 0.400 eV. The ferromagnetic (FM) component is induced as Co enters the lattice, and the FM component raises to its maximum when x is 0.6. The competing of FM and antiferromagnetic (AFM) components led to the emergence of a spin-glass like behavior in the intermediate alloys.

Graphical abstract: Observation of spin-glass like behavior in the layered oxyselenides La2O3(Mn1−xCox)2Se2

Article information

Article type
Paper
Submitted
29 Feb 2020
Accepted
22 Mar 2020
First published
07 Apr 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 14033-14039

Observation of spin-glass like behavior in the layered oxyselenides La2O3(Mn1−xCox)2Se2

C. Gao, S. Tan, C. Wang, Y. Sun, R. Cao, K. Han, Q. Jing, T. Zhou, Q. Meng and F. Xing, RSC Adv., 2020, 10, 14033 DOI: 10.1039/D0RA01928C

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