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Title: Nonlinear spin filter for non-magnetic materials at zero magnetic field
Authors: Marcellina, Elizabeth
Srinivasan, Ashwin
Nichele, Fabrizio
Stano, Peter
Ritchie, David A.
Farrer, Ian
Culcer, Dimitrie
Hamilton, Alexander R.
Keywords: Science::Physics
Issue Date: 2019
Source: Marcellina, E., Srinivasan, A., Nichele, F., Stano, P., Ritchie, D. A., Farrer, I., . . . Hamilton, A. R. (2020). Non-linear spin filter for non-magnetic materials at zero magnetic field. Physical Review B, 102(14), 140406-. doi:10.1103/PhysRevB.102.140406
Journal: Physical Review B 
Abstract: The ability to convert spin accumulation to charge currents is essential for applications in spintronics. In semiconductors, spin-to-charge conversion is typically achieved using the inverse spin Hall effect or using a large magnetic field. Here we demonstrate a general method that exploits the nonlinear interactions between spin and charge currents to perform all-electrical, rapid, and noninvasive detection of spin accumulation without the need for a magnetic field. We demonstrate the operation of this technique with ballistic GaAs holes as a model system with strong spin-orbit coupling, in which a quantum point contact provides the nonlinear energy filter. This approach is generally applicable to electron and hole systems with strong spin-orbit coupling.
ISSN: 2469-9950
DOI: 10.1103/PhysRevB.102.140406
Rights: © 2020 American Physical Society. All rights reserved. This paper was published in Physical Review B and is made available with permission of American Physical Society.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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