Non-Fermi-Liquid Behavior in Quasi-One-DimensionalLi0.9Mo6O17

J. Hager, R. Matzdorf, J. He, R. Jin, D. Mandrus, M. A. Cazalilla, E. W. Plummer
2005 Physical Review Letters  
We present temperature dependent scanning tunneling spectroscopy data of the quasi-one-dimensional conductor Li 0:9 Mo 6 O 17 . The differential tunneling current in our low-temperature spectra shows a powerlaw 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
more » ... perature. 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.
doi:10.1103/physrevlett.95.186402 pmid:16383925 fatcat:ye2iz5at2reozmutffpbywq5l4