Giant room temperature interface spin hall and inverse spin hall effects

Lei Wang, R.J.H. Wesselink, Yi Liu, Zhe Yuan, Ke Xia, Paul J. Kelly

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115 Citations (Scopus)
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Abstract

The spin Hall angle (SHA) is a measure of the efficiency with which a transverse spin current is generated from a charge current by the spin-orbit coupling and disorder in the spin Hall effect (SHE). In a study of the SHE for a Pt|Py (Py=Ni 80 Fe 20 ) bilayer using a first-principles scattering approach, we find a SHA that increases monotonically with temperature and is proportional to the resistivity for bulk Pt. By decomposing the room temperature SHE and inverse SHE currents into bulk and interface terms, we discover a giant interface SHA that dominates the total inverse SHE current with potentially major consequences for applications.
Original languageEnglish
Article number196602
Number of pages6
JournalPhysical review letters
Volume116
Issue number196602
DOIs
Publication statusPublished - 2016

Keywords

  • IR-100752
  • METIS-316937

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