INTERPLAY OF CHARGE, ORBITAL AND MAGNETIC ORDER IN Pr{sub 1{minus}x}Ca{sub x}MnO{sub 3}

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The authors report resonant x-ray scattering studies of charge and orbital order in Pr{sub 1{minus}x}Ca{sub x}MnO{sub 3} with x = 0.4 and 0.5. Below the ordering temperature, T{sub O} = 245 K, the charge and orbital order intensities follow the same temperature dependence, including an increase at the antiferromagnetic ordering temperature, T{sub N}. High resolution measurements reveal, however, that long range orbital order is never achieved. Rather, an orbital domain state is formed. Above T{sub O}, the charge order fluctuations are more highly correlated than the orbital fluctuations. Similar phenomenology is observed in a magnetic field. They conclude that the ... continued below

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9 pages

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V.ZIMMERMANN,M.; HILL,J.P.; GIBBS,D.; BLUME,M.; CASA,D.; KEIMER,B. et al. November 29, 1999.

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The authors report resonant x-ray scattering studies of charge and orbital order in Pr{sub 1{minus}x}Ca{sub x}MnO{sub 3} with x = 0.4 and 0.5. Below the ordering temperature, T{sub O} = 245 K, the charge and orbital order intensities follow the same temperature dependence, including an increase at the antiferromagnetic ordering temperature, T{sub N}. High resolution measurements reveal, however, that long range orbital order is never achieved. Rather, an orbital domain state is formed. Above T{sub O}, the charge order fluctuations are more highly correlated than the orbital fluctuations. Similar phenomenology is observed in a magnetic field. They conclude that the charge order drives the orbital order at the transition.

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9 pages

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INIS; OSTI as DE00755054

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  • MATERIALS RESEARCH SOCIETY 1999 FALL MEETING, BOSTON, MA (US), 11/29/1999--12/03/1999

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  • Report No.: BNL--67340
  • Report No.: KC0202010
  • Grant Number: AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 755054
  • Archival Resource Key: ark:/67531/metadc707650

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  • November 29, 1999

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  • Sept. 12, 2015, 6:31 a.m.

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  • Nov. 9, 2015, 12:45 p.m.

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V.ZIMMERMANN,M.; HILL,J.P.; GIBBS,D.; BLUME,M.; CASA,D.; KEIMER,B. et al. INTERPLAY OF CHARGE, ORBITAL AND MAGNETIC ORDER IN Pr{sub 1{minus}x}Ca{sub x}MnO{sub 3}, article, November 29, 1999; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc707650/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.