Uniaxial magnetic anisotropy induced low field anomalous anisotropic magnetoresistance in manganite thin films

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Abstract

La2/3Sr1/3MnO3 films with uniaxial magnetic anisotropy were coherently grown on NdGaO3 (110) substrates. The uniaxial anisotropy has strong effect on magnetoresistance (MR). A positive MR was observed when the current is along magnetic easy axis under the current-field perpendicular geometry. In contrast, no positive MR is observed when current is along the magnetic hard axis regardless of the field direction. Our analysis indicates that the anomalous anisotropic MR effect arises from the uniaxial magnetic anisotropy caused stripe domains which contribute to strong anisotropic domain wall resistivity.
Original languageEnglish
Article number096112
Number of pages6
JournalAPL materials
Volume2
Issue number9
DOIs
Publication statusPublished - 2014

Keywords

  • METIS-305252
  • IR-94908

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