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Spin-dependent electron reflection at W(110).

C Angrick1, J Braun2, H Ebert2

  • 1Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|December 14, 2020
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Summary
This summary is machine-generated.

Spin-orbit interaction enables spin-dependent electron reflection at W(110) surfaces. This study maps reflectivity and spin separation, identifying W(110) as a promising material for spin-polarization detectors.

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Area of Science:

  • Surface science
  • Quantum mechanics
  • Condensed matter physics

Background:

  • Spin-orbit interaction influences electron behavior at surfaces.
  • Tungsten (W) surfaces are potential candidates for electron spin manipulation.

Purpose of the Study:

  • Investigate spin-dependent electron reflection at the W(110) surface.
  • Evaluate W(110) as a target for spin-polarization detectors.

Main Methods:

  • Experimental measurements of electron reflectivity and spin asymmetry.
  • Theoretical calculations using a realistic surface potential barrier.
  • Mapping of spin separation figure of merit across various conditions.

Main Results:

  • Detailed experimental and theoretical data on spin-dependent electron reflection at W(110).
  • Comprehensive maps illustrating reflectivity, spin asymmetry, and spin separation.
  • Identification of optimal parameters for electron spin manipulation.

Conclusions:

  • W(110) exhibits significant spin-dependent reflection due to spin-orbit interaction.
  • W(110) is a viable material for developing advanced spin-polarization detectors.
  • Specific operating points are identified for single- and multi-channel spin detection devices.