Spin-phonon coupling in Gd(Co1/2Mn1/2)O3 perovskite

Document Type

Article

Publication Date

11-21-2013

Abstract

We have investigated the temperature-dependent Raman-active phonons and the magnetic properties of Gd(Co1/2Mn1/2)O3 perovskite ceramics in the temperature range from 40 K to 300 K. The samples crystallized in an orthorhombic distorted simple perovskite, whose symmetry belongs to the P n m a space group. The data reveal spin-phonon coupling near the ferromagnetic transition occurring at around 120 K. The correlation of the Raman and magnetization data suggests that the structural order influences the magnitude of the spin-phonon coupling. © 2013 AIP Publishing LLC.

Publication Title

Journal of Applied Physics

Volume

114

Issue

19

Digital Object Identifier (DOI)

10.1063/1.4829902

ISSN

00218979

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