Temperature-Dependent X-Ray Absorption Spectroscopy of Colossal Magnetoresistive Perovskites

Details Temperature-Dependent X-Ray Absorption Spectroscopy of Colossal Magnetoresistive Perovskites Temperature-Dependent X-Ray Absorption Spectroscopy of Colossal Magnetoresistive Perovskites

2005-01-11

arxiv.org/abs/cond-mat/0501273v1

Phys. Rev. B 71, 125117 (2005)

Physics

Condensed Matter

Strongly Correlated Electrons

To appear in Phys. Rev. B, 5 pages, 3 figures

Scientific paper

10.1103/PhysRevB.71.125117

The temperature dependence of the O K-edge pre-edge structure in the x-ray absorption spectra of the perovskites La(1-x)A(x)MnO(3), (A = Ca, Sr; x = 0.3, 0.4) reveals a correlation between the disappearance of the splitting in the pre-edge region and the presence of Jahn-Teller distortions. The different magnitudes of the distortions for different compounds is proposed to explain some dissimilarity in the line shape of the spectra taken above the Curie temperature.

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