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Two-dimensional antiferromagnetic correlations in an La{sub 1.4}Sr{sub 1.6}(Mn{sub 0.9}Co{sub 0.1}){sub 2}O{sub 7} single crystal

Journal Article · · Journal of Experimental and Theoretical Physics
 [1];  [2];  [1];  [3];  [2];  [1];  [2]
  1. Russian Academy of Sciences, Konstantinov St. Petersburg Nuclear Physics Institute (Russian Federation)
  2. Russian Academy of Sciences, Kirensky Institute of Physics, Siberian Branch (Russian Federation)
  3. Max Plank Institute for Chemical Physics of Solids (Germany)
The temperature and field dependences of the magnetization, the electrical resistivity, and the magnetostriction of bilayer lanthanum manganite La{sub 1.4}Sr{sub 1.6}Mn{sub 2}O{sub 7} single crystals and cobalt-doped La{sub 1.4}Sr{sub 1.6}(Mn{sub 0.9}Cu{sub 0.1}){sub 2}O{sub 7} are measured. The magnetostriction of the cobalt-doped compound increases as compared to the initial La{sub 1.4}Sr{sub 1.6}Mn{sub 2}O{sub 7} compound, and the magnetization and the magnetoresistance of the former compound change substantially. Powder and single-crystal neutron diffraction patterns are used to detect ferromagnetic ordering in La{sub 1.4}Sr{sub 1.6}(Mn{sub 0.9}Co{sub 0.1}){sub 2}O{sub 7} at a temperature below T{sub C} ~ 45(2) K, and this ordering coexists with antiferromagnetic correlations, which develop at temperatures below T{sub C} ~ 80(5) K.
OSTI ID:
22756478
Journal Information:
Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 5 Vol. 124; ISSN JTPHES; ISSN 1063-7761
Country of Publication:
United States
Language:
English