Hidden one-dimensional electronic structure and non-Fermi liquid angle resolved photoemission line shapes of η-Mo₄O₁₁

Gweon, G. -H.; Mo, S. -K.; Allen, J. W.; Ast, C. R.; Höchst, H.; Sarrao, J. L.; Fisk, Z.

doi:10.1103/PhysRevB.72.035126

arXiv 2005-07-15 DOI 10.1103/PhysRevB.72.035126 1 مشاهدة

Hidden one-dimensional electronic structure and non-Fermi liquid angle resolved photoemission line shapes of η-Mo₄O₁₁

Gweon, G. -H. · Mo, S. -K. · Allen, J. W. · Ast, C. R. · Höchst, H. · Sarrao, J. L. · Fisk, Z.

Strongly Correlated Electrons Materials Science

الأصل · EN

We report angle resolved photoemission (ARPES) spectra of η-Mo₄O₁₁, 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 NaMo₆O₁₇, the ARPES line shapes show certain anomalies, which we discuss in terms of non-Fermi liquid physics and possible roles of disorder.

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