Local structure of La1-xSrxCoO3 determined from EXAFS and neutron pair distribution function studies

N Sundaram; Y Jiang; I E Anderson; D P Belanger; C H Booth; F Bridges; J F Mitchell; Th Proffen; H Zheng

doi:10.1103/PhysRevLett.102.026401

Local structure of La1-xSrxCoO3 determined from EXAFS and neutron pair distribution function studies

Phys Rev Lett. 2009 Jan 16;102(2):026401. doi: 10.1103/PhysRevLett.102.026401. Epub 2009 Jan 13.

Authors

N Sundaram¹, Y Jiang, I E Anderson, D P Belanger, C H Booth, F Bridges, J F Mitchell, Th Proffen, H Zheng

Affiliation

¹ Department of Physics, University of California, Santa Cruz, California 95064, USA.

PMID: 19257297
DOI: 10.1103/PhysRevLett.102.026401

Abstract

The combined local structure techniques, extended x-ray absorption fine structure and neutron pair distribution function analysis, have been used for temperatures 4< or =T< or =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< or =0.35), indicating few, if any, JT-active, singly occupied e_{g} Co sites exist.