Spin Polarization of Photoelectrons from Topological Insulators

Abstract

We show that the degree of spin polarization of photoelectrons from the surface states of topological insulators is 100% if fully-polarized light is used as in typical photoemission measurements, and hence can be significantly "higher" than that of the initial state. Further, the spin orientation of these photoelectrons in general can also be very different from that of the initial surface state and is controlled by the photon polarization; a rich set of predicted phenomena have recently been confirmed by spin- and angle-resolved photoemission experiments.

arXiv commentA sentence on the effect of the imaginary part of the initial-state electron self energy is added to the published version

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Cited by in corpus (44)

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• Spin polarization and texture of the Fermi arcs in the Weyl Fermion semimetal TaAs
• Selective probing of hidden spin-polarized states in inversion-symmetric bulk MoS2
• Photoelectron spin-polarization-control in the topological insulator Bi2Se3
• Photoemission of Bi${}_2$Se${}_3$ with Circularly Polarized Light: Probe of Spin Polarization or Means for Spin Manipulation?
• Orbital-Selective Spin Texture and its Manipulation in a Topological Insulator
• Ultrafast spin polarization control of Dirac fermions in topological insulators
• Circular dichroism in angle-resolved photoemission spectroscopy of topological insulators
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• Spin- and angle-resolved photoemission on topological materials
• Angle-resolved Photoemission Spectroscopy Study on the Surface States of the Correlated Topological Insulator YbB6
• Photogalvanic effect in HgTe/CdTe topological insulator due to edge-bulk optical transitions
• Separating the bulk and surface n- to p-type transition in the topological insulator GeBi(4-x)SbxTe7
• Spin-texture induced by oxygen vacancies in Strontium perovskites (001) surfaces: A theoretical comparison between SrTiO3 and SrHfO3
• Photoemission Circular Dichroism and Spin Polarization of the Topological Surface States in Ultrathin Bi2Te3 Films
• Anomalous behavior of the electronic structure of (Bi${}_{1-x}$In${}_x$)${}_2$Se${}_3$ across the quantum-phase transition from topological to trivial insulator
• Fundamentally fastest optical processes at the surface of a topological insulator
• Triple point fermions in ferroelectric GeTe
• Persistent Coherence and Spin-Polarization of Topological Surface States on Topological Insulators
• Realization of bulk insulating property and carrier manipulation in reversible spin current regime of the ideal topological insulator TlBiSe2
• Synchrotron radiation induced magnetization in magnetically-doped and pristine topological insulators
• Spin-conserving and reversing photoemission from the surface states of Bi${}_2$Se${}_3$ and Au (111)
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• Effects of spin-orbit coupling on the optical response of a material
• Determination of the time scale of photoemission from the measurement of spin polarization
• $d_{xz/yz}$ Orbital Subband Structures and Chiral Orbital Angular Momentum in the (001) Surface States of SrTiO${}_3$
• Discovery of highly spin-polarized conducting surface states in the strong spin-orbit coupling semiconductor Sb${}_2$Se${}_3$
• Pseudo-Spin, Real-Spin and Spin Polarization of Photo-emitted Electrons
• Kramers-Weyl fermions in the chiral charge density wave material (TaSe${}_4$)${}_2$I
• Momentum-dependent spin selection rule in photoemission with glide symmetry
• The anomalous spin texture as the probe for interactions in $B{i}_{2-y}S{b}_{y}S{e}_{x}T{e}_{3-x}$
• Photoionization of Xe and Rn from the relativistic random-phase theory
• Visualization of optical polarization transfer to photoelectron spin vector emitted from the spin-orbit coupled surface state
• Fingerprints of entangled spin and orbital physics in itinerant ferromagnets via angle resolved $resonant$ photoemission
• Interaction Approach to Anomalous Spin Texture in Warped Topological Insulators
• Spin-orbit effects at chiral surfaces
• Determination of Out-of-plane Spin Polarization of Topological Surface States by Spin Hall Effect Tunneling Spectroscopy
• Theoretical investigation of the applicability of the Meservey-Tedrow technique to the surface states of topological insulators
• First-Principles Analysis of Chirality-Induced Spin Selectivity at Molecule-Metal Interfaces in Photoemission
• Glide-resolved photoemission spectroscopy: Measuring topological invariants in nonsymmorphic space groups