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Observation of spin filtering in magnetic insulator contacts to silicon

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2011

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Luysberg, Martina
Schneider, Claus M.

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https://doi.org/10.1063/1.3572016
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Applied Physics Letters. American Institute of Physics (AIP). 2011, 98(14), 142503. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.3572016

Zusammenfassung

The magnetic insulator EuS is used to create a spin-selective and conductivity-matched tunnel contact to silicon, in analogy to a conventional ferromagnetic metal/semiconductor configuration employed for spin injection. The spin filter efficiency of such a magnetic “spin filter” tunnel barrier is quantified using an adjacent Co ferromagnetic electrode as spin detector in a spin valve-type structure. This previously unobserved magnetoresistance effect demonstrates the efficient spin-polarizing nature of magnetic semiconductors on silicon and its prospective functionality as spin injectors/detectors in hybrid semiconductor devices.

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ISO 690MÜLLER, Martina, Martina LUYSBERG, Claus M. SCHNEIDER, 2011. Observation of spin filtering in magnetic insulator contacts to silicon. In: Applied Physics Letters. American Institute of Physics (AIP). 2011, 98(14), 142503. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.3572016
BibTex
@article{Muller2011-04-04Obser-49737,
  year={2011},
  doi={10.1063/1.3572016},
  title={Observation of spin filtering in magnetic insulator contacts to silicon},
  number={14},
  volume={98},
  issn={0003-6951},
  journal={Applied Physics Letters},
  author={Müller, Martina and Luysberg, Martina and Schneider, Claus M.},
  note={Article Number: 142503}
}
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