0000000001081035

AUTHOR

M. Hoesch

showing 2 related works from this author

Generation and Evolution of Spin-, Valley-, and Layer-Polarized Excited Carriers in Inversion-Symmetric WSe2

2016

We report the spin-selective optical excitation of carriers in inversion-symmetric bulk samples of the transition metal dichalcogenide (TMDC) WSe2. Employing time- and angle-resolved photoelectron spectroscopy (trARPES) and complementary time-dependent density functional theory (TDDFT), we observe spin-, valley-, and layer-polarized excited state populations upon excitation with circularly polarized pump pulses, followed by ultrafast ( < 100     fs ) scattering of carriers towards the global minimum of the conduction band. TDDFT reveals the character of the conduction band, into which electrons are initially excited, to be two-dimensional and localized within individual layers, whereas at t…

Condensed Matter - Materials Sciencetr-ARPESCondensed Matter - Mesoscale and Nanoscale PhysicsTDDFT530 PhysicsMesoscale and Nanoscale Physics (cond-mat.mes-hall)Materials Science (cond-mat.mtrl-sci)FOS: Physical sciences10192 Physics Institute2D materialsSettore FIS/03 - Fisica Della Materia3100 General Physics and Astronomy
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Emitter-site specificity of hard x-ray photoelectron Kikuchi-diffraction

2020

New journal of physics 22(10), 103002 (1-13) (2020). doi:10.1088/1367-2630/abb68b

PhysicsDiffractionSiliconDopantX-rayGeneral Physics and Astronomychemistry.chemical_element01 natural sciencesMolecular physics530Spectral line010305 fluids & plasmaschemistryLattice (order)Interstitial defect0103 physical sciencesPhysics::Atomic and Molecular Clustersddc:530010306 general physicsBloch wave
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