Direct Fermi-surface image of hidden nesting for NaMo{sub 6}O{sub 17} and KMo{sub 6}O{sub 17}

Journal Article · Thu May 01 04:00:00 EDT 1997 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.55.R13353· OSTI ID:544353

Gweon, G -; Allen, J W; Clack, J A; Zhang, Y X ^[1]; Poirier, D M; Benning, P J; Olson, C G ^[2]; Marcus, J; Schlenker, C ^[3]

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1. Randall Laboratory, University of Michigan, Ann Arbor, Michigan 48109-1120 (United States)
2. Ames Laboratory, Iowa State University, Ames, Iowa 50011 (United States)
3. Laboratoire dEtudes des Proprietes Electroniques des Solides, CNRS, Boite Postale 166, 38042 Grenoble Cedex (France)

We report direct Fermi-surface images obtained with angle-resolved photoemission spectroscopy (ARPES) for NaMo{sub 6}O{sub 17} and KMo{sub 6}O{sub 17} above the charge-density wave transition temperatures. We also report ARPES spectra of the valence band of NaMo{sub 6}O{sub 17}. The images imply a Fermi surface (FS) based on three underlying quasi-one-dimensional (quasi-1D) surfaces. Thus it agrees in detail with that expected in the hidden nesting picture of Whangbo {ital et al.} [Science {bold 252}, 96 (1991)], but differs greatly from a FS deduced in a previous study by Breuer {ital et al.} [Phys. Rev. Lett. {bold 76}, 3172 (1996)], which found only two underlying quasi-1D surfaces. {copyright} {ital 1997} {ital The American Physical Society}

• DOE Contract Number: FG02-90ER45416; W-7405-ENG-82
• OSTI ID: 544353
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 20 Vol. 55; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
CHARGE DENSITY
EFFECTIVE MASS
ELECTRONIC STRUCTURE
FERMI LEVEL
LAUE METHOD
MOLYBDENUM OXIDES
PHOTOEMISSION
POTASSIUM OXIDES
SODIUM OXIDES