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Local tunneling magnetoresistance probed by low-temperature scanning laser microscopy

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2011

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Werner, Robert
Weiler, Mathias
Petrov, Aleksandr Yu.
Davidson, Bruce A.
Gross, Rudolf
Kleiner, Reinhold
Koelle, Dieter

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https://doi.org/10.1063/1.3659301
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http://arxiv.org/abs/1108.6159

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Applied Physics Letters. American Institute of Physics (AIP). 2011, 99(18), 182513. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.3659301

Zusammenfassung

Tunneling magnetoresistance in a vertical manganite junction was investigated by low-temperature scanning laser microscopy (LTSLM) allowing to determine the local relative magnetization M orientation of the two electrodes as a function of magnitude and orientation of the external magnetic field H. Sweeping the field amplitude at fixed orientation revealed magnetic domain nucleation and propagation in the junction electrodes. For the high-resistance state, an almost single-domain antiparallel magnetization configuration was achieved, while in the low-resistance state the junction remained in a multidomain state. Calculated resistance Rcalc(H) based on the local M configuration obtained by LTSLM is in quantitative agreement with R(H) measured by magnetotransport.

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ISO 690WERNER, Robert, Mathias WEILER, Aleksandr Yu. PETROV, Bruce A. DAVIDSON, Rudolf GROSS, Reinhold KLEINER, Sebastian T. B. GOENNENWEIN, Dieter KOELLE, 2011. Local tunneling magnetoresistance probed by low-temperature scanning laser microscopy. In: Applied Physics Letters. American Institute of Physics (AIP). 2011, 99(18), 182513. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.3659301
BibTex
@article{Werner2011-08-31T08:43:05ZLocal-52510,
  year={2011},
  doi={10.1063/1.3659301},
  title={Local tunneling magnetoresistance probed by low-temperature scanning laser microscopy},
  number={18},
  volume={99},
  issn={0003-6951},
  journal={Applied Physics Letters},
  author={Werner, Robert and Weiler, Mathias and Petrov, Aleksandr Yu. and Davidson, Bruce A. and Gross, Rudolf and Kleiner, Reinhold and Goennenwein, Sebastian T. B. and Koelle, Dieter},
  note={Article Number: 182513}
}
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