Ferromagnetic Domain Structure of La0.78Ca0.22MnO3 Single Crystals

Grzegorz Jung; Vladimir Markovich; Kees van der Beek; Dmitrii Mogilyansky; Yakov M. Mukovskii

doi:10.1103/PhysRevB.72.134412

Ferromagnetic Domain Structure of La0.78Ca0.22MnO3 Single Crystals

Strongly Correlated Electrons 2009-11-11 v1

Authors: Grzegorz Jung , Vladimir Markovich , Kees van der Beek , Dmitrii Mogilyansky , Yakov M. Mukovskii

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Abstract

The magneto-optical technique has been employed to observe spontaneous ferromagnetic domain structures in La0.78Ca0.22MnO3 single crystals. The magnetic domain topology was found to be correlated with the intrinsic twin structure of the investigated crystals. With decreasing temperature the regular network of ferromagnetic domains undergoes significant changes resulting in apparent rotation of the domain walls in the temperature range of 70-150 K. The apparent rotation of the domain walls can be understood in terms of the Jahn-Teller deformation of the orthorhombic unit cell, accompanied by additional twinning.

Keywords

ferromagnetic domain La0.78Ca0.22MnO3 magneto-optical technique twin structure Jahn-Teller deformation

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@article{arxiv.cond-mat/0509423,
  title  = {Ferromagnetic Domain Structure of La0.78Ca0.22MnO3 Single Crystals},
  author = {Grzegorz Jung and Vladimir Markovich and Kees van der Beek and Dmitrii Mogilyansky and Yakov M. Mukovskii},
  journal= {arXiv preprint arXiv:cond-mat/0509423},
  year   = {2009}
}

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7 pages, 5 figures, to be published in PRB

Ferromagnetic Domain Structure of La0.78Ca0.22MnO3 Single Crystals

Abstract

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