STRUCTURAL DISTORTIONS IN THE PARAMAGNETIC INSULATING PHASE OF LA(0.7)CA(0.3)MNO(3). [electronic resource]
We report x-ray scattering studies of polarons and tilt ordering in the high-temperature, paramagnetic insulating phase of La{sub 0.7}Ca{sub 0.3}MnO₃. The temperature dependence of scattering due to individual and correlated polarons was measured, and the latter was found to disappear at ∼400 K. The...
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Online Access |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Dept. of Energy. Office of Energy Research ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
2001.
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| Subjects: |
| Summary: | We report x-ray scattering studies of polarons and tilt ordering in the high-temperature, paramagnetic insulating phase of La{sub 0.7}Ca{sub 0.3}MnO₃. The temperature dependence of scattering due to individual and correlated polarons was measured, and the latter was found to disappear at ∼400 K. The scattering due to tilt ordering, which was observed by tuning the incident photon energy near the La L₁ edge, was also measured as a function of temperature. The destruction of tilt ordering at ∼690 K is believed to be associated with the orthorhombic-rhombohedral structural transition. |
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| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 04/16/2001. "bnl--68251" " kc020201" "KC020201" MATERIAL RESEARCH SOCIETY 2001 SPRING MEETING, SAN FRANCISCO, CA (US), 04/16/2001--04/20/2001. HILL,J.P.; NELSON,C.S.; KIM,Y.J.; GIBBS,D.; KIRYUKHIN,V.; CHEONG,S.W.; KOO,T.Y. |
| Physical Description: | 8 pages : digital, PDF file. |