Selective probing of hidden spin-polarized states in inversion-symmetric bulk MoS2

Abstract

Spin- and angle-resolved photoemission spectroscopy is used to reveal that a large spin polarization is observable in the bulk centrosymmetric transition metal dichalcogenide MoS2. It is found that the measured spin polarization can be reversed by changing the handedness of incident circularly-polarized light. Calculations based on a three-step model of photoemission show that the valley and layer-locked spin-polarized electronic states can be selectively addressed by circularly-polarized light, therefore providing a novel route to probe these hidden spin-polarized states in inversion-symmetric systems as predicted by Zhang et al. [Nature Physics 10, 387 (2014)].

arXiv comment6 pages, 4 figures. Accepted for publication in Physical Review Letters

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• Phonon-induced renormalization of electron wave functions
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• Spin structure of K valleys in single-layer WS${}_2$ on Au(111)
• Multifarious skyrmion phases on a trilayer triangular lattice
• Polarization-Modulated Angle-Resolved Photoemission Spectroscopy: Towards Circular Dichroism without Circular Photons and Bloch Wavefunction Reconstruction
• Observation of spin-momentum-layer locking in centrosymmetric BiOI
• Unveiling Giant Hidden Rashba Effects in Two-Dimensional Si${}_2$Bi${}_2$
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• Spin accumulation and dynamics in inversion-symmetric van der Waals crystals
• Proximity-induced topological phases in bilayer graphene
• Fermiology and electron-phonon coupling in the 2H and 3R polytypes of NbS${}_2$
• Symmetry-assisted protection and compensation of hidden spin polarization in centrosymmetric systems
• Hidden Physical Effects in Non-centrosymmetric Crystals
• Spin-orbital-momentum locking under odd-parity magnetic quadrupole ordering
• Square skyrmion crystal in centrosymmetric systems with locally inversion-asymmetric layers
• Layer and orbital interference effects in photoemission from transition metal dichalcogenides
• Signatures of a surface spin-orbital chiral metal
• Berry Curvature Signatures in Chiroptical Excitonic Transitions
• Hidden spin-orbital texture at the $\bar{\Gamma }$-located valence band maximum of a transition metal dichalcogenide semiconductor
• Ultrafast Hidden Spin Polarization Dynamics of Bright and Dark Excitons in 2H-WSe${}_2$
• Kramers' revenge
• Magnetic parity violation and parity-time-reversal-symmetric magnets
• Probing magnetic orbitals and Berry curvature with circular dichroism in resonant inelastic X-ray scattering
• Rigidity of topological invariants to symmetry breakings
• Layer effects on the magnetic textures in magnets with local inversion asymmetry
• NMR in an electric field: A bulk probe of the hidden spin and orbital polarizations
• Hydrogenic Spin-Valley states of the Bromine donor in 2H-MoTe${}_2$
• Transition from Optically Excited to Intrinsic Spin Polarization in WSe${}_2$
• Reexamining Circular Dichroism in Photoemission From a Topological Insulator
• Matter with apparent and hidden spin physics
• Spin-Valley Locking in 2H-TaS2 and Its Co-Intercalated Counterpart: Roles of Surface Domains and Co Intercalation
• Nonreciprocal magnon excitations by the Dzyaloshinskii-Moriya interaction on the basis of bond magnetic toroidal multipoles
• Intrinsic Mechanism for Magneto-Thermal Conductivity Oscillations in Spin-Orbit-Coupled Nodal Superconductors
• Circular dichroism in the photoelectron angular distribution of achiral molecules