New Luttinger liquid physics from photoemission on Li${}_{0.9}$Mo${}_6$O${}_{17}$

Abstract

Temperature dependent high resolution photoemission spectra of quasi-1 dimensional Li${}_{0.9}$Mo${}_6$O${}_{17}$ evince a strong renormalization of its Luttinger liquid density-of-states anomalous exponent. We trace this new effect to interacting charge neutral critical modes that emerge naturally from the two-band nature of the material. Li${}_{0.9}$Mo${}_6$O${}_{17}$ is shown thereby to be a paradigm material that is capable of revealing new Luttinger physics.

4 pages, 3 figures. Accepted for publication by Phys. Rev. Lett

References in corpus (2)

• Generalized Spectral Signatures of Electron Fractionalization in Quasi-One and -Two Dimensional Molybdenum Bronzes and Superconducting Cuprates
• Luttinger liquid ARPES spectra from samples of Li${}_{0.9}$Mo${}_6$O${}_{17}$ grown by the temperature gradient flux technique

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