Non-Fermi-Liquid Behavior in Quasi-One-Dimensional Li0.9Mo6O17

J. Hager, R. Matzdorf, J. He, R. Jin, D. Mandrus, M. A. Cazalilla, and E. W. Plummer
Phys. Rev. Lett. 95, 186402 – Published 25 October 2005

Abstract

We present temperature dependent scanning tunneling spectroscopy data of the quasi-one-dimensional conductor Li0.9Mo6O17. 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=24K is observed in our temperature dependent data.

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  • Received 15 April 2005

DOI:https://doi.org/10.1103/PhysRevLett.95.186402

©2005 American Physical Society

Authors & Affiliations

J. Hager1, R. Matzdorf1, J. He2, R. Jin2, D. Mandrus2,3, M. A. Cazalilla4, and E. W. Plummer2,3

  • 1Fachbereich Naturwissenschaften, Universität Kassel, 34109 Kassel, Germany
  • 2Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37831, USA
  • 3Department of Physics, The University of Tennessee, Knoxville, Tennessee 37996, USA
  • 4Donostia International Physics Center (DIPC), Manuel de Lardizabal, 4. 20018-Donostia, Spain

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Issue

Vol. 95, Iss. 18 — 28 October 2005

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