Observation of spin filtering in magnetic insulator contacts to silicon

Type of Publication: Journal article
Publication status: Published
Author: Müller, Martina; Luysberg, Martina; Schneider, Claus M.
Year of publication: 2011
Published in: Applied Physics Letters ; 98 (2011), 14. - 142503. - American Institute of Physics (AIP). - ISSN 0003-6951. - eISSN 1077-3118
DOI (citable link): https://dx.doi.org/10.1063/1.3572016
Summary:
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.
Subject (DDC): 530 Physics
Refereed: Yes

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MÜLLER, 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). 98(14), 142503. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.3572016

@article{Muller2011-04-04Obser-49737, title={Observation of spin filtering in magnetic insulator contacts to silicon}, year={2011}, doi={10.1063/1.3572016}, 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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