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

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

2006-04-21

arxiv.org/abs/cond-mat/0604503v1

Phys. Rev. Lett. 96, 196403 (2006)

Physics

Condensed Matter

Strongly Correlated Electrons

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

Scientific paper

10.1103/PhysRevLett.96.196403

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.

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