Electronic Structure near the Fermi Surface in the Quasi-One-Dimensional Conductor Li{sub 0.9} Mo{sub 6} O{sub 17}

Journal Article · Sun Aug 01 04:00:00 EDT 1999 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.83.1235· OSTI ID:365898

Xue, J; Duda, L; Smith, K E ^[1]; Fedorov, A V; Johnson, P D ^[2]; Hulbert, S L ^[3]; McCarroll, W; Greenblatt, M ^[4]

---

1. Department of Physics, Boston University, Boston, Massachusetts 02215 (United States)
2. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)
3. National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973 (United States)
4. Department of Chemistry, Rutgers University, New Brunswick, New Jersey 08903 (United States)

The electronic properties of the quasi-one-dimensional (1D) oxide conductor Li{sub 0.9}Mo {sub 6}O{sub 17} have been investigated using high-momentum and energy resolution photoelectron spectroscopy at temperatures above and below the metal-semiconductor transition temperature. Considerable spectral intensity at the Fermi energy (E{sub F}) is observed at room temperature, and a sharp feature corresponding to a band crossing E{sub F} is clearly resolved for states along the quasi-1D axis. Below the metal-semiconductor transition at 24thinspthinspK, a gap is clearly observed to open at E{sub F} . Our data do not support the assertion that the low energy excitations of electrons in Li{sub 0.9}Mo {sub 6}O{sub 17} should be described in a Luttinger liquid model. {copyright} {ital 1999} {ital The American Physical Society }

• DOE Contract Number: FG02-98ER45680
• OSTI ID: 365898
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 6 Vol. 83; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTRONIC STRUCTURE
ENERGY GAP
FERMI LEVEL
LITHIUM OXIDES
MOLYBDENUM OXIDES
NSLS
PHOTOELECTRON SPECTROSCOPY
SYNCHROTRON RADIATION
TEMPERATURE DEPENDENCE