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Magnetotransport and magnetic domain structure in compressively strained colossal magnetoresistance films

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Magnetotransport_and_magnetic_domain_structure_in_compressively_strained_colossal_magnetoresistance_films.pdf
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1999

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Wu, Yan
Suzuki, Yuri
Yu, Jun
Kent, Andrew D.
Nath, Tapan K.
Eom, Chang-Beom

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http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-53311
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https://doi.org/10.1063/1.124995
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Published

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Applied Physics Letters. 1999, 75(15), pp. 2295-2297. Available under: doi: 10.1063/1.124995

Zusammenfassung

We have studied the magnetoresistance (MR) of compressively strained La0.7Sr0.3MnO3 (LSMO) films in various magnetic states in order to understand the role of magnetic domain structure on magnetotransport. In thin films of LSMO on (100) LaAlO3, the perpendicular magnetic anisotropy results in perpendicularly magnetized domains with fine scale ~200 nm domain subdivision, which we image directly at room temperature using magnetic force microscopy. The main MR effects can be understood in terms of bulk colossal MR and anisotropic MR. We also find evidence for a small domain wall contribution to the MR, which is an order of magnitude larger than expected from a double exchange model.

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ISO 690WU, Yan, Yuri SUZUKI, Ulrich RÜDIGER, Jun YU, Andrew D. KENT, Tapan K. NATH, Chang-Beom EOM, 1999. Magnetotransport and magnetic domain structure in compressively strained colossal magnetoresistance films. In: Applied Physics Letters. 1999, 75(15), pp. 2295-2297. Available under: doi: 10.1063/1.124995
BibTex
@article{Wu1999Magne-5151,
  year={1999},
  doi={10.1063/1.124995},
  title={Magnetotransport and magnetic domain structure in compressively strained colossal magnetoresistance films},
  number={15},
  volume={75},
  journal={Applied Physics Letters},
  pages={2295--2297},
  author={Wu, Yan and Suzuki, Yuri and Rüdiger, Ulrich and Yu, Jun and Kent, Andrew D. and Nath, Tapan K. and Eom, Chang-Beom}
}
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