title: Giant Room Temperature Interface Spin Hall and Inverse Spin Hall Effects.
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.
authors.affiliation: The Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, 100875 Beijing, China.|Faculty of Science and Technology and MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.affiliation: Faculty of Science and Technology and MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
authors.forename: R J H
authors.initials: RJ
authors.lastname: Wesselink
authors.affiliation: The Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, 100875 Beijing, China.|Faculty of Science and Technology and MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
authors.forename: Yi
authors.initials: Y
authors.lastname: Liu
authors.affiliation: The Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, 100875 Beijing, China.
authors.forename: Zhe
authors.initials: Z
authors.lastname: Yuan
authors.affiliation: The Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, 100875 Beijing, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Xia
authors.affiliation: Faculty of Science and Technology and MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
authors.forename: Paul J
authors.initials: PJ
authors.lastname: Kelly