paper

Hidden one-dimensional electronic structure and non-Fermi liquid angle resolved photoemission line shapes of $I^\cdot$ -Mo $_{4}$ O $_{11}$

arXiv:cond-mat/0507382 · doi:10.1103/PhysRevB.72.035126

Abstract

We report angle resolved photoemission (ARPES) spectra of $I^\cdot$ -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

Hidden one-dimensional electronic structure and non-Fermi liquid angle resolved photoemission line shapes of I^⋅-Mo4​O11​

Abstract

Hidden one-dimensional electronic structure and non-Fermi liquid angle resolved photoemission line shapes of $I^\cdot$ -Mo $_{4}$ O $_{11}$