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Low-temperature transverse magnetic domains in nominally uniaxial La0.67Sr0.33MnO3 films on NdGaO3 (0 0 1)

Low-temperature transverse magnetic domains in nominally uniaxial La0.67Sr0.33MnO3 films on... Epitaxial La0.67Sr0.33MnO3 films grown on orthorhombic NdGaO3 (0 0 1) substrates show predominantly uniaxial magnetic anisotropy. On cooling, we observe the growth of a biaxial contribution, which we quantify by fitting magnetometry data to a coherent rotation model. A film grown under deliberately sub-optimal conditions shows a relatively stronger biaxial contribution that results in a significant population of transverse magnetic domains below ∼200 K, as revealed by photoemission electron microscopy with x-ray magnetic circular dichroism contrast. Care should be taken to avoid these transverse domains in spintronic devices designed to exploit the high low-temperature spin-polarization of La0.67Sr0.33MnO3. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Physics D: Applied Physics IOP Publishing

Low-temperature transverse magnetic domains in nominally uniaxial La0.67Sr0.33MnO3 films on NdGaO3 (0 0 1)

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References (32)

Copyright
Copyright 2013 IOP Publishing Ltd
ISSN
0022-3727
eISSN
1361-6463
DOI
10.1088/0022-3727/46/3/032002
Publisher site
See Article on Publisher Site

Abstract

Epitaxial La0.67Sr0.33MnO3 films grown on orthorhombic NdGaO3 (0 0 1) substrates show predominantly uniaxial magnetic anisotropy. On cooling, we observe the growth of a biaxial contribution, which we quantify by fitting magnetometry data to a coherent rotation model. A film grown under deliberately sub-optimal conditions shows a relatively stronger biaxial contribution that results in a significant population of transverse magnetic domains below ∼200 K, as revealed by photoemission electron microscopy with x-ray magnetic circular dichroism contrast. Care should be taken to avoid these transverse domains in spintronic devices designed to exploit the high low-temperature spin-polarization of La0.67Sr0.33MnO3.

Journal

Journal of Physics D: Applied PhysicsIOP Publishing

Published: Jan 23, 2013

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