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Fermi surface of a quasi-one-dimensional oxide conductor

Journal Article · · Physical Review Letters; (United States)
;  [1]; ;  [2]
  1. Department of Physics, Boston University, 590 Commonwealth Ave., Boston, Massachusetts 02215 (United States)
  2. Department of Chemistry, Rutgers University, New Brunswick, New Jersey 08903 (United States)
We report the first determination of the Fermi surface for a quasi-one-dimensional oxide conductor, Li[sub 0.9]Mo[sub 6]O[sub 17]. The Fermi surface has been measured within the cleavage plane of the crystal using high-resolution angle-resolved photoemission spectroscopy. The Fermi surface consists of two parallel straight lines, separated by a nesting vector of approximately 0.7[plus minus]0.05 A[sup [minus]1]. A large density of states at [ital E][sub [ital F]] is observed from the measured band dispersion, despite a low photoemission spectral intensity at [ital E][sub [ital F]]. The measured Fermi surface allows the prediction of the magnitude of the displacement vector associated with soft phonons and a postulated Peierls transition in Li[sub 0.9]Mo[sub 6]O[sub 17].
OSTI ID:
6399073
Journal Information:
Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:24; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English