https://doi.org/10.1140/epjb/e2004-00214-x
Spectroscopic and dc-transport investigations of the electronic properties of TaSe3
1
Laboratorium für Festkörperphysik, ETH Zürich, 8093 Zürich, Switzerland
2
Institut de Physique des Nanostructures, EPF Lausanne, 1015 Lausanne, Switzerland
3
Institut de Physique de La Matière Complexe, EPF Lausanne, 1015 Lausanne, Switzerland
4
Paul Scherrer Institute, 5232 Villigen
Corresponding author: a degiorgi@solid.phys.ethz.ch
Received:
16
February
2004
Revised:
27
April
2004
Published online:
23
July
2004
TaSe3 belongs to a class of low-dimensional materials characterized by the interplay and competition between dimensionality crossover and broken symmetry ground states. A comprehensive study by dc-transport, optical, and angle-resolved photoemission (ARPES) experiments shows that the electronic properties of this compound are strongly anisotropic between the chain and the transverse crystallographic direction. Even though TaSe3 fails to undergo a charge-density-wave (CDW) phase transition, we found evidence for short range order CDW segments, which progressively disappear with decreasing temperature.
PACS: 78.20.-e – Optical properties of bulk materials and thin films / 71.30.+h – Metal-insulator transitions and other electronic transitions / 71.45.Lr – Charge-density-wave systems
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2004