Hidden one-dimensional electronic structure and non-Fermi liquid angle resolved photoemission line shapes of $\eta$-Mo${}_4$O${}_{11}$

Abstract

We report angle resolved photoemission (ARPES) spectra of $\eta$-Mo${}_4$O${}_{11}$, a layered metal that undergoes two charge density wave (CDW) transitions at 109 K and 30 K. We have directly observed the ``hidden one-dimensional (hidden-1d)'' Fermi surface and an anisotropic gap opening associated with the 109 K transition, in agreement with the band theoretical description of the CDW transition. In addition, as in other hidden-1d materials such as NaMo${}_6$O${}_{17}$, the ARPES line shapes show certain anomalies, which we discuss in terms of non-Fermi liquid physics and possible roles of disorder.

3 figures; Erratum added to include missed references

References in corpus (6)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
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Cited by in corpus (3)

• Theory of stripes in quasi two dimensional rare-earth tritellurides
• Crossed Luttinger Liquid Hidden in a Quasi-two-dimensional Material η-Mo4O11
• Multiple Charge Density Wave States at the Surface of TbTe${}_3$