Local Structure of La1-xSrxCoO3 determined from EXAFS and neutron PDF studies

Abstract

The combined local structure techniques, extended x-ray absorption fine structure (EXAFS) and neutron pair distribution function analysis, have been used for temperatures 4 <= T <= 330 K to rule out a large Jahn-Teller (JT) distortion of the Co-O bond in La1-xSrxCoO3 for a significant fraction of Co sites (x <= 0.35), indicating few, if any, JT-active, singly occupied e_g Co sites exist.

arXiv comment5 pages

References in corpus (13)

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Cited by in corpus (13)

• Soft x-ray magnetic circular dichroism of LaCoO${}_3$, La${}_{0.7}$Ce${}_{0.3}$CoO${}_3$, and La${}_{0.7}$Sr${}_{0.3}$CoO${}_3$ films: Evidence for Co valency-dependent magnetism and magnetic anisotropy
• Evolution of magnetic oxygen states in Sr-doped LaCoO${}_3$
• Importance of exchange-anisotropy and superexchange for the spin-state transitions in LnCoO3 (Ln=La,Y,RE) cobaltates
• Coulomb correlations intertwined with spin and orbital excitations in LaCoO${}_3$
• Spin state transition in LaCoO3 by variational cluster approximation
• Effect of carrier doping on the formation and collapse of magnetic polarons in lightly hole-doped La_{1-x}Sr_xCoO_3
• Hole-doping-induced melting of spin-state ordering in PrBaCo2O5.5+x
• Role of Entropy and Structural Parameters in the Spin State Transition of LaCoO${}_3$
• Direct observation of double exchange in ferromagnetic La${}_{0.7}$Sr${}_{0.3}$CoO${}_3$ by broadband ellipsometry
• The effects of Co3O4 on the Structure and Unusual Magnetism of LaCoO3
• Structure and magnetism in $\mathrm{LaCo}{\mathrm{O}}_3$
• Magneto-thermally Activated Spin-state Transition in La0.95Ca0.05CoO3: Magnetically-tunable Dipolar Glass and Giant Magneto-electricity
• X-ray Absorption Spectroscopy Study of La${}_{1-y}$Sr${}_y$Co${}_{1-x}$Nb${}_x$O${}_3$