AVS 53rd International Symposium
    Magnetic Interfaces and Nanostructures Wednesday Sessions
       Session MI-WeM

Invited Paper MI-WeM12
Non-Fermi-Liquid Behavior in Quasi-One-Dimensional Li@sub 0.9@Mo@sub 6@O@sub 17@

Wednesday, November 15, 2006, 11:40 am, Room 2006

Session: Magnetic Imaging
Presenter: E.W. Plummer, The University of Tennessee, Knoxville and Oak Ridge National Laboratory
Correspondent: Click to Email
Temperature dependent scanning tunneling spectroscopy data of the quasi-one-dimensional conductor Li@sub 0.9@Mo@sub 6@O@sub 17@ will be presented. The differential tunneling current in the low-temperature spectra shows a power-law beefier 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 the data.