Anisotropic magnetoresistance in tetragonal La1-xCaxMnOδ thin films

J. N. Eckstein, I. Bozovic, J. O'Donnell, M. Onellion, M. S. Rzchowski

Research output: Contribution to journalArticlepeer-review

Abstract

We have fabricated thin films of Lax-1CaxMnOδ with tetragonal symmetry. For low temperatures and magnetic fields the measured magnetoresistance is anisotropic: initially positive for applied magnetic field perpendicular to the film plane and negative for field applied parallel to the film plane. At high temperatures the magnetoresistance is negative for all fields and field orientations. We also observe an in-plane magnetoresistance anisotropy with an angular dependence corresponding to that observed in transition metal ferromagnets. We suggest an interpretation requiring a substantial spin-orbit interaction in the material.

Original languageEnglish (US)
Pages (from-to)1312-1314
Number of pages3
JournalApplied Physics Letters
Volume69
Issue number9
DOIs
StatePublished - Aug 26 1996
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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