Anisotropic magnetoresistance in epitaxial La0.67(Ca 1-xSrx)0.33MnO3 films

  • Yiwei Liu
  • , Zhihuan Yang
  • , Huali Yang
  • , Yali Xie
  • , Sadhana Katlakunta
  • , Bin Chen
  • , Qingfeng Zhan
  • , Run Wei Li

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We investigated the anisotropic magnetoresistance (AMR) effects for La 0.67(Ca1-xSrx)0.33MnO3 films epitaxially grown on (001) oriented SrTiO3 substrates. The increase of Sr doping gives rise to the enhancement of the metal-insulator transition temperature, but suppresses the AMR amplitude. The dependence of AMR on the magnetic field orientation for the Sr doping samples shows the coexistence of two-fold and four-fold symmetries, which is changed with varying the temperature. Moreover, the sign of AMR is changed from negative to positive with increasing the temperature. The abnormal AMR behaviors can be understood by different s-d scattering occurring at different temperatures.

Original languageEnglish
Article number17C722
JournalJournal of Applied Physics
Volume113
Issue number17
DOIs
StatePublished - 7 May 2013
Externally publishedYes

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