## High-Resolution Photoemission Investigation Of Phase-Transitions In 1T-Tas2

Photoelectron spectroscopy with very high energy resolution reveals both dramatic and subtle changes in the electronic density of states of the quasi-2D material 1T-TaS2, in coincidence with transitions between different charge density wave phases. Our results are consistent with the occurrence of a zero-gap Mott transition at approximately 185 K and of a subsequent Anderson localization in the pseudogap between the Hubbard subbands, and provide new insight into the unusual electronic properties of this material.

Published in:
Helvetica Physica Acta, 65, 486-487
Year:
1992
ISSN:
0018-0238
Laboratories: