# Selective probing of hidden spin-polarized states in inversion-symmetric bulk ${\mathrm{MoS}}_{2}$

• Razzoli, Elia Département de Physique and Fribourg Center for Nanomaterials, Université de Fribourg, Switzerland
• Jaouen, Thomas Département de Physique and Fribourg Center for Nanomaterials, Université de Fribourg, Switzerland
• Mottas, Marie-Laure Département de Physique and Fribourg Center for Nanomaterials, Université de Fribourg, Switzerland
22.02.2017
Published in:
• Physical Review Letters. - 2017, vol. 118, no. 8, p. 086402
English 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. [Nat. Phys. 10, 387 (2014).].
Faculty
Faculté des sciences et de médecine
Department
Département de Physique
Language
• English
Classification
Physics