English

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

Materials Science 2015-06-17 v3
Authors: 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.

Keywords

spin-phonon coupling perovskite Raman spectroscopy magnetic properties ferromagnetic transition Gd(Co1/2Mn1/2)O3

Cite

@article{arxiv.1309.1209,
  title  = {Spin-phonon coupling in Gd(Co1/2Mn1/2)O3 perovskite},
  author = {R. X. Silva and H. Reichlova and X. Marti and D. A. B. Barbosa and M. W. Lufaso and A. P. Ayala and C. W. A. Paschoal},
  journal= {arXiv preprint arXiv:1309.1209},
  year   = {2015}
}

Comments

3 Figures, suplementary material

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