Splitting in the Fermi surface ofZrTe3: A surface charge density wave system

2009/02/28 by Moritz Hoesch, Xiaoyu Cui, Kenya Shimada +6 · 5 citations
Materials Science · Physics and Astronomy · #Computer science #Organic and Molecular Conductors Research #Quantum and electron transport phenomena #Surface and Thin Film Phenomena #cond-mat.other #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.80.075423

8 pages, 7 figures

arxiv created 2009/02/28 · openalex publication_date 2009/08/18 · arxiv updated 2015/05/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The electronic band structure and Fermi surface of ZrTe₃ was determined by angle-resolved photoemission spectroscopy. Several bands and a large part of the Fermi surface are found to be split by 100--200 meV into two parallel dispersions. Calculations of the bulk band structure cannot reproduce this splitting even if spin-orbit interaction is taken into account. A bilayer model representing the top layers of a surface-relaxed structure without reconstruction introduces the observed splitting and reproduces most features observed in the data thus suggesting a surface relaxation of the freshly cleaved ZrTe₃. The dispersion of the highly nested small electron pocket that gives rise to the charge density wave is traceable even in the low-temperature gapped state and the gap energy is determined as \ensuremathε_g=65\ifmmode±\else\textpm\fi10 meV.

Citations

• New Model System for a One-Dimensional Electron Liquid: Self-Organized Atomic Gold Chains on Ge(001)

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