Charge-density-wave structure indetermined by scanning tunneling microscopy
- 11 March 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 66 (10) , 1318-1321
- https://doi.org/10.1103/physrevlett.66.1318
Abstract
Scanning-tunneling-microscope images of at 4.2 K show that all three pairs of chains in the unit cell carry a strong charge-density-wave (CDW) modulation. The high-temperature CDW is strongly localized on one pair of chains, consistent with previous conclusions. The low-temperature CDW forms on the remaining two pairs of chains in disagreement with previous results and analysis which concluded that only one pair of chains participated in the low-temperature CDW formation.
Keywords
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