commensurate phaseelectronic structureangle-resolved photoemission spectroscopycore level energy shiftWe have investigated the electronic structure of the commensurate charge-density-wave (CDW) phase for 1T-TaSe
we attribute the excitation peak to the opening of a partial CDW gap, whose size is comparable to that of bulk TaSe2, which is 150–250 meV determined by different techniques such as infrared reflection spectroscopy26,27,35, angle-resolved photoemission spectroscopy (ARPES)36,37,38,39, and...
We employ first-principles calculations, ARPES experiments and new theoretical analysis to reveal that PbTaSe2, a non-centrosymmetric superconductor, possesses a nonzero Z2 topological invariant and fully spin-polarized Dirac states. Moreover, we analyze the phonon spectrum of PbTaSe2 to show how ...
(theoretical QPI analysis). Computational resources were provided by the NSF through the Extreme Science and Engineering Discovery Environment (XSEDE) resources. The work at the Stanford Institute for Materials and Energy Sciences and Stanford University (ARPES measurements) was supported by the Office...
(CVT) technique, PbTaSe2 crystallizes in a layered structure and the crystal symmetry has been shown belonging to a non-centrosymmetric space group P6-m2 confirmed by the consistent band picture near the Fermi level between the angle-resolved photoemission spectrum (ARPES) and theoretical ...
TaSe_(2)By using angle-resolvea photoemission spectroscopy(ARPES) combined with the first-principies electronic structure calculations,we report the quantized states at the surface of a single crystal 2 H-TaSe_(2).We have observed sub-bands of quantized states at the three-dimensional Brillouin ...