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Large Magnetoresistance Anisotropy in Strained Pr0.67Sr0.33MnO3 Thin Films

Published online by Cambridge University Press:  10 February 2011

H. S. Wang ,
Y. F. Hu ,
E. Wertz  and
Qi Li
H. S. Wang
Affiliation:
Department of Physics, Pennsylvania State University, University Park, PA 16802
Y. F. Hu
Affiliation:
Department of Physics, Pennsylvania State University, University Park, PA 16802
E. Wertz
Affiliation:
Department of Physics, Pennsylvania State University, University Park, PA 16802
Qi Li
Affiliation:
Department of Physics, Pennsylvania State University, University Park, PA 16802
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Abstract

We have studied the anisotropic magnetoresistance (AMR) of strained Pr0.67Sr0.33MnO3 thin films by measuring the MR as a function of the angle between the magnetic field direction and the substrate normal (out-of-plane). The results show that the compressive- and tensile-strained ultrathin films (5-15 nm) grown on LaAlO3 (001) (LAO) and SrTiO3 (001) (STO) substrates show unusually large out-of-plane AMR, but with opposite signs. In contrast, the almost strainfree films on the NdGaO3 (110) substrates show much smaller AMR over all the temperature and field ranges studied. Thick films on LAO and STO substrates also show much smaller AMR.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 602: Symposium JJ – Magnetoresistive Oxides & Related Materials , 1999 , 87
Copyright
Copyright © Materials Research Society 2000

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