Atomic force microscopy and scanning tunneling microscopy of charge-density waves in 1 T -TaSe sub 2 and 1 T -TaS sub 2

Journal Article · Wed Nov 14 23:00:00 EST 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.42.9255· OSTI ID:6108567

Slough, C G; McNairy, W W; Coleman, R V ^[1]; Garnaes, J; Prater, C B; Hansma, P K ^[2]

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1. Department of Physics, University of Virginia, Charlottesville, VA (USA)
2. Department of Physics, University of California, Santa Barbara, Santa Barbara, CA (USA)

Atomic force microscopy (AFM) and scanning tunneling microscopy (STM) images of 1{ital T}-TaSe{sub 2} and 1{ital T}-TaS{sub 2} at room temperature reveal both atoms and charge-density waves (CDW's). In AFM the atoms and CDW's have comparable amplitudes. In contrast, in STM the CDW's have amplitudes up to an order of magnitude larger than the atoms. Both AFM and STM images show that the CDW structure of 1{ital T}-TaS{sub 2} is continuously incommensurate while 1{ital T}-TaSe{sub 2} is commensurate.

• DOE Contract Number: FG05-84ER45072
• OSTI ID: 6108567
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 42:14; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

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