Observation of step-induced magnetic domain formation in la 1-xSrxMnO3 thin films by photoelectron emission microscopy

T. Taniuchi, H. Kumigashira, M. Oshima, T. Wakita, T. Yokoya, M. Kubota, K. Ono, H. Akinaga, M. Lippmaa, M. Kawasaki, H. Koinuma

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Abstract

Magnetic domain formation in thin films of La1-xSr xMnO3 (LSMO) with x=0.2 and 0.4 epitaxially grown on stepped SrTiO3 (001) substrates has been investigated by photoelectron emission microscopy. The magnetic domains show a stripe structure elongated along the step directions, indicating uniaxial magnetic anisotropy induced by step structures. We have also found that the magnetization of the magnetic domains is slightly meandering at domain boundaries. The existence of the additional structures suggests that the magnetic domains in LSMO films are also influenced by biaxial magnetocrystalline anisotropy. The direct observation of the magnetic domain structures suggests that the competition between the two magnetic anisotropies may play an important role in magnetic properties in LSMO films.

Original languageEnglish
Article number112505
JournalApplied Physics Letters
Volume89
Issue number11
DOIs
Publication statusPublished - 2006 Sep 21
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Taniuchi, T., Kumigashira, H., Oshima, M., Wakita, T., Yokoya, T., Kubota, M., Ono, K., Akinaga, H., Lippmaa, M., Kawasaki, M., & Koinuma, H. (2006). Observation of step-induced magnetic domain formation in la 1-xSrxMnO3 thin films by photoelectron emission microscopy. Applied Physics Letters, 89(11), [112505]. https://doi.org/10.1063/1.2347895