Charge fluctuations in the unconventional metallic state of Li0.9Mo6O17

Abstract

Charge fluctuations in the quasi-one-dimensional material Li0.9Mo6O17 are analyzed based on a multi orbital extended Hubbard model. A charge ordering transition induced by Coulomb repulsion is found with a charge ordering pattern different from a conventional charge density wave driven by Fermi surface nesting. The metallic state displays a characteristic charge collective mode which softens signalling the proximity to the transition. We argue that the strong scattering between electrons generated by these charge order fluctuations can lead to the unconventional metallic state observed above the superconducting transition temperature in Li0.9Mo6O17.

5 pages, 4 figures, typos corrected and references added

References in corpus (7)

• Near-degeneracy of several pairing channels in multiorbital models for the Fe-pnictides
• Ubiquitous Interplay between Charge Ordering and High-Temperature Superconductivity in Cuprates
• Charge order driven by Fermi-arc instability in Bi2201
• Theoretical Aspects of Charge Ordering in Molecular Conductors
• New Luttinger liquid physics from photoemission on Li${}_{0.9}$Mo${}_6$O${}_{17}$
• Photoemission Spectroscopy and the Unusually Robust One Dimensional Physics of Lithium Purple Bronze
• Electric field gradient wave (EFGW) in iron-based superconductor Ba(0.6)K(0.4)Fe2As2 studied by Mössbauer spectroscopy

Cited by in corpus (4)

• Spin-triplet superconductivity in a weak-coupling Hubbard model for the quasi-one-dimensional compound Li${}_{0.9}$Mo${}_6$O${}_{17}$
• Triplet superconductivity in a model of Li${}_{0.9}$Mo${}_6$O${}_{17}$
• Multi-orbital physics in lithium-molybdenum purple-bronze: going beyond paradigm
• Wannier-Orbital theory and ARPES for the quasi-1D conductor LiMo${}_6$O${}_{17}$