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

Abstract

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.

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

References in corpus (4)

• Double Exchange Alone Does Not Explain the Resistivity of $L{a}_{1-x}S{r}_{x}Mn{O}_3$
• Dynamic Jahn-Teller Effect and Colossal Magnetoresistance in $L{a}_{1-x}{A}_{x}Mn{O}_3$
• Direct Observation of High-Temperature Polaronic Behavior In Colossal Magnetoresistive Manganites
• Correction of non-linearity effects in detectors for electron spectroscopy

Cited by in corpus (6)

• Polaronic excitations in CMR manganite films
• Experimental evidence of thermal fluctuations on the X-ray absorption near-edge structure at the aluminum K-edge
• Local distortion of MnO${}_6$ octahedron in La${}_{1-x}$Sr${}_x$MnO${}_{3+\delta }$ (x = 0.1 to 0.9): an EXAFS study
• Transport, magnetic, and structural properties of La${}_{0.7}$Ce${}_{0.3}$MnO${}_3$ thin films. Evidence for hole-doping
• Electronic structure of Pr${}_{0.67}$Ca${}_{0.33}$MnO${}_3$ near the Fermi level studied by ultraviolet photoelectron and x-ray absorption spectroscopy
• Temperature dependence of the pre-edge structure in the Ti K-edge x-ray absorption spectrum of rutile