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...
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 ...
Angle-resolved photoemission spectroscopy (ARPES) measurements of the E(k/sub ///) band structure are reported for 1T-TaS2 and 2H-TaSe2 at temperatures whe... NV Smith,SD Kevan,FJ Disalvo - 《Journal of Physics C Solid State Physics》 被引量: 97发表: 1985年 He-atom scattering study ...
We report about an electron energy-loss study on the dispersion of the charge-carrier plasmon in the charge-density-wave system 2H-TaSe_2 above and below the metal-insulator transition. In both cases we find a negative slope, which is in remarkable contrast to the traditional prediction for ...
We conduct Angle Resolved Photoemission Spectroscopy (ARPES) investigation on 2H-TaS_2, a prototypical incommensurate Charge Density Wave (CDW) material. A comparative study of the low-energy electronic structures of 2H-TaS_2 and two other related compounds, 2H~TaSe_2 and 2H-NbSe_2, identifies...
We conduct Angle Resolved Photoemission Spectroscopy (ARPES) investigation on 2H-TaS2, a prototypical incommensurate Charge Density Wave (CDW) material. A comparative study of the low-energy electronic structures of 2H-TaS2 and two other related compounds, 2H-TaSe2 and 2H-NbSe2, identies several...
Band structures of the layer compounds 1T-TaS2 and 2H-TaSe2 in the presence of commensurate charge-density waves Angle-resolved photoemission spectroscopy (ARPES) measurements of the E(k/sub ///) band structure are reported for 1T-TaS2 and 2H-TaSe2 at temperatures whe... NV Smith,SD Kevan...
We have used the triple-axis neutron-scattering technique to study 2H-TaSe2 and 2H-NbSe2 which undergo charge-density wave transitions at T0=122.3 K and T0=33.5 K, respectively. The transitions in both compounds appear to be second-order and involve atomic displacements of Σ1 symmetry. ...