Charge-density-wave modifications in NbSe sub 3 produced by Fe and Co doping

Journal Article · Wed Apr 15 04:00:00 EDT 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.45.9469· OSTI ID:7201393

Dai, Z; Slough, C G; Coleman, R V ^[1]

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1. Physics Department, University of Virginia, Charlottesville, Virginia 22901 (United States)

Dilute concentrations of impurities in NbSe{sub 3} crystals change the charge-density-wave (CDW) energy gaps very rapidly while the onset temperatures show very small changes. Fe concentrations of {lt}1% reduce the two CDW energy gaps by approximately 30%, while Co concentrations of {lt}3% increase the low-temperature CDW energy gap by approximately 37% and the high-temperature CDW gap by approximately 28%. The real-space scanning-tunneling-microscope scans show changes in the relative CDW modulation amplitudes consistent with the observed changes in the energy gaps.

• DOE Contract Number: FG05-84ER45072
• OSTI ID: 7201393
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 45:16; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
ALLOYS
CHALCOGENIDES
COBALT ADDITIONS
COBALT ALLOYS
COLLECTIVE EXCITATIONS
ENERGY GAP
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FERMI LEVEL
IRON ADDITIONS
IRON ALLOYS
NIOBIUM COMPOUNDS
NIOBIUM SELENIDES
REFRACTORY METAL COMPOUNDS
SELENIDES
SELENIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS