Published July 1, 2002
| Version v1
Journal article
Cooperative Jahn-Teller transition and resonant x-ray scattering in thin film LaMnO3
- 1. Department of Physics and Electron Spin Science Center, Pohang University of Science and Technology, Pohang, 790-784 (Korea, Republic of)
- 2. Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, 790-784 (Korea, Republic of)
Description
Epitaxial thin films of stoichiometric LaMnO3 were grown on SrTiO3(110) and MgO(110) substrates. The cooperative Jahn-Teller (JT) transition was found to occur at TJT=573.0 and 670.0 K for films on SrTiO3 and MgO, respectively. Extended x-ray-absorption fine structure, and resonant x-ray scattering intensity of the orthorhombic (100) peaks near the Mn K-edge were measured from low temperatures to above TJT. We demonstrate that the integrated intensity of the resonant x-ray peak is proportional to the 3/2 power of the orthorhombic lattice strain as well as local bond orthorhombicity at all temperatures for both films. This proves that the band effect associated with the JT distortion accounts for the Mn K-edge resonant scattering in LaMnO3
Additional details
Identifiers
- DOI
- 10.1103/PhysRevB.66.020407;
- arXiv
- arXiv:cond-mat/0110587v1;
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter and Materials Physics
- Journal Volume
- 66
- Journal Issue
- 2
- Journal Page Range
- p. 020407-020407.4
- ISSN
- 1098-0121
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36001381
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Descriptors DEI
- ABSORPTION SPECTROSCOPY; FERROMAGNETIC MATERIALS; FINE STRUCTURE; JAHN-TELLER EFFECT; LANTHANUM COMPOUNDS; LAYERS; MAGNESIUM OXIDES; MANGANATES; ORTHORHOMBIC LATTICES; RESONANCE SCATTERING; STOICHIOMETRY; STRAINS; STRESSES; STRONTIUM TITANATES; TEMPERATURE RANGE 0400-1000 K; THIN FILMS; X-RAY SPECTROSCOPY
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; FILMS; INELASTIC SCATTERING; MAGNESIUM COMPOUNDS; MAGNETIC MATERIALS; MANGANESE COMPOUNDS; MATERIALS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SCATTERING; SPECTROSCOPY; STRONTIUM COMPOUNDS; TEMPERATURE RANGE; TITANATES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Notes
- (c) 2002 The American Physical Society