Charge-density-wave formation in Ta[sub 2]NiSe[sub 7] studied by scanning tunneling microscopy
Journal Article
·
· Physical Review Letters; (United States)
- Department of Physics, University of Virginia, Charlottesville, Virgnia 22901 (United States)
Scanning tunneling microscope images of Ta[sub 2]NiSe[sub 7] taken at 77 and 4.2 K show a complex electronic rearrangment occurring below the charge-density-wave (CDW) onset temperature of 52.5 K. A large energy gap of 41.0[plus minus]3.0 meV is observed and a CDW amplitude modulation of wavelength [similar to]2[ital b][sub 0] is detected. The electronic transfer between chains appears to drive the CDW formation.
- DOE Contract Number:
- FG05-84ER45072
- OSTI ID:
- 6916340
- Journal Information:
- Physical Review Letters; (United States), Vol. 69:12; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
NICKEL SELENIDES
ELECTRONIC STRUCTURE
TANTALUM COMPOUNDS
ELECTRON MICROSCOPES
ELECTRON TRANSFER
ENERGY GAP
TEMPERATURE DEPENDENCE
CHALCOGENIDES
MICROSCOPES
NICKEL COMPOUNDS
REFRACTORY METAL COMPOUNDS
SELENIDES
SELENIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360606* - Other Materials- Physical Properties- (1992-)
NICKEL SELENIDES
ELECTRONIC STRUCTURE
TANTALUM COMPOUNDS
ELECTRON MICROSCOPES
ELECTRON TRANSFER
ENERGY GAP
TEMPERATURE DEPENDENCE
CHALCOGENIDES
MICROSCOPES
NICKEL COMPOUNDS
REFRACTORY METAL COMPOUNDS
SELENIDES
SELENIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360606* - Other Materials- Physical Properties- (1992-)