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Strain-Induced Magnetic Properties of Pr0.67Sr0.33MnO3 Thin Films

Published online by Cambridge University Press:  10 February 2011

X. W. Wu ,
M. S. Rzchowski ,
H. S. Wang  and
Qi Li
X. W. Wu
Affiliation:
Physics Department, University of Wisconsin-Madison, Madison, WI 53706
M. S. Rzchowski
Affiliation:
Physics Department, University of Wisconsin-Madison, Madison, WI 53706
H. S. Wang
Affiliation:
Physics Department, Pennsylvania State Universit, University Park, Pennsylvania 16802
Qi Li
Affiliation:
Physics Department, University of Wisconsin-Madison, Madison, WI 53706
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Abstract

We report the temperature dependence of the magnetic anisotropy in both compressive and tensile strained films of Pr0.67Sr0.33MnO3 (PSMO). Compressive strain induced by growth on LaAlO3 (LAO) substrates results in a spontaneous out-of-plane magnetization, while tensile strain (grown on SrTiO3) results in in-plane magnetization. The coefficient of linear proportionality between the magnetic anisotropy energy and the tetragonal strain for both compressive and tensile strained PSMO films is larger than that found previously in strained La0.67Ca0.33MnO3 films. From the data, we estimate a 20 unit cell magnetic domain wall width for PSMO / LAO. Scattering from such a narrow domain wall could produce a potentially significant contribution to the resistivity.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 602: Symposium JJ – Magnetoresistive Oxides & Related Materials , 1999 , 219
Copyright
Copyright © Materials Research Society 2000

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