Physica status solidi B - Basic solid state physics
2021
Online
academicJournal
Zugriff:
Determining the detailed spin texture of topological surface states is important when one wants to apply topological insulators in spintronic devices. In principle, the in-plane spin component of the surface states can be measured by a method analogous to the so-called Meservey-Tedrow technique. Herein, it is suggested that the out-of-plane spin component can be determined by spin Hall effect tunneling spectroscopy. An analytical formula that allows to extract the out-of-plane spin component from spin Hall effect tunneling spectra is derived. The formula is tested using realistic tight-binding models of Bi2Se3 and Sb2Te3. It is demonstrated that the extracted out-of-plane spin polarization is in very good agreement with the actual out-of-plane spin polarization.
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Physica status solidi B - Basic solid state physics
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Verantwortlichkeitsangabe: | Determination of Out-of-Plane Spin Polarization of Topological Surface States by Spin Hall Effect Tunneling Spectroscopy |
Autor/in / Beteiligte Person: | Götte, Matthias ; Dahm, Thomas |
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Veröffentlichung: | 2021 |
Medientyp: | academicJournal |
ISSN: | 0370-1972 (print) |
DOI: | 10.1002/pssb.202000032 |
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