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arXiv · 1309.1209

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

R. X. Silva·H. Reichlova·X. Marti·D. A. B. Barbosa·M. W. Lufaso·A. P. Ayala·C. W. A. Paschoal
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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 Pnma space group. The data reveals 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.

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R. X. Silva, H. Reichlova, X. Marti, D. A. B. Barbosa, M. W. Lufaso, A. P. Ayala, C. W. A. Paschoal. 2013-09-04. Spin-phonon coupling in Gd(Co1/2Mn1/2)O3 perovskite. https://doi.org/10.1063/1.4829902

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