Non-Fermi Liquid Behavior in Quasi-One-Dimensional Li_0.9Mo₆O₁₇

Journal Article · Sat Jan 01 04:00:00 EST 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.95.186402· OSTI ID:1003221

Hager, J. ^[1]; Matzdorf, R. ^[1]; He, Jian ^[2]; Jin, Rongying ^[2]; Mandrus, David ^[2]; Cazalilla, M. ^[3]; Plummer, E Ward ^[2]

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1. Universitat Kassel, Kassel, Germany
2. ORNL
3. Donostia International Physics Center (DIPC), Donostia, Spain

We present temperature dependent scanning tunneling spectroscopy data of the quasi-one-dimensional conductor Li{sub 0.9}Mo{sub 6}O{sub 17}. The differential tunneling current in our low-temperature spectra shows a power-law behavior around the Fermi energy, which is expected for a clean Luttinger liquid. The power-law exponent is found to be 0.6. Spectra for a temperature range of 5 to 55 K can be fitted fairly well with a model for tunneling into a Luttinger liquid at the appropriate temperature. A fit with a model based on a zero bias anomaly is significantly worse compared to the Luttinger liquid model. No signature of a phase transition at T = 24 K is observed in our temperature dependent data.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1003221
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 18 Vol. 95; ISSN 1079-7114; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEHAVIOR
BRONZE
LIQUIDS
LITHIUM OXIDES
MOLYBDENUM OXIDES
SPECTRA
SPECTROSCOPY
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0065-0273 K
TUNNEL EFFECT