Abstract
Angle-resolved photoemissions studies were conducted on single-crystal (I samples above and below the charge-density-wave transition temperature () of 260 K. We observed a shift of the leading photoemission edge between 300 and 60 K consistent with resistivity measurements performed on the same sample: a band gap opens throughout the Brillouin zone below . However, several aspects of the data are difficult to reconcile with any standard model.
- Received 8 February 1995
DOI:https://doi.org/10.1103/PhysRevB.52.5592
©1995 American Physical Society