Single domain to multidomain transition due to in-plane magnetic anisotropy in phase-separated (La0.4Pr0.6)0.67Ca0.33MnO3 thin films

Hyoungjeen Jeen and Amlan Biswas
Phys. Rev. B 83, 064408 – Published 11 February 2011


Phase-separated perovskite manganites have competing phases with different crystal structures, and magnetic and electronic properties. Hence, strain effects play a critical role in determining the magnetic properties of manganite thin films. Here we report the effect of anisotropic stress on the magnetic properties of the phase-separated manganite (La0.4Pr0.6)0.67Ca0.33MnO3. Thin films of (La0.4Pr0.6)0.67Ca0.33MnO3 grown under anisotropic in-plane stress on (110) NdGaO3 substrates display in-plane magnetic anisotropy and single domain to multidomain transition as a function of temperature. Angle-dependent magnetization measurements also show that the magnetization reversal occurs mainly through the nucleation and propagation mechanism. By comparing the results with (La0.4Pr0.6)0.67Ca0.33MnO3 thin films grown on (001) SrLaGaO4 substrates, we have confirmed that the magnetic anisotropy is mainly due to substrate-induced anisotropic stress. Our results suggest avenues for storing magnetic information in nanoscale magnetic media.

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  • Received 25 October 2010


©2011 American Physical Society

Authors & Affiliations

Hyoungjeen Jeen and Amlan Biswas*

  • Department of Physics, University of Florida, Gainesville, Florida 32611, USA

  • *

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Vol. 83, Iss. 6 — 1 February 2011

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