Two-dimensional antiferromagnetic correlations in an [La.sub.1.4][Sr.sub.1.6]
The temperature and field dependences of the magnetization, the electrical resistivity, and the magnetostriction of bilayer lanthanum manganite LaL4SrL6[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 magnetost...
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Published in | Journal of experimental and theoretical physics Vol. 124; no. 5; pp. 786 - 1571 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Springer
01.05.2017
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Subjects | |
Online Access | Get full text |
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Summary: | The temperature and field dependences of the magnetization, the electrical resistivity, and the magnetostriction of bilayer lanthanum manganite LaL4SrL6[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. |
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ISSN: | 1063-7761 1090-6509 |
DOI: | 10.1134/S1063776117050120 |