Role of charge-density-wave fluctuations on the spectral function in a metallic charge-density-wave system

T. Yokoya, T. Kiss, Ashish Atma Chainani, S. Shin, K. Yamaya

研究成果: Article同行評審

52 引文 斯高帕斯(Scopus)

摘要

Angle-resolved photoemission spectroscopy of Zr Te3 has been performed from room temperature (T) down to 6 K (across TCDW =63 K) to study the charge-density-wave (CDW) fluctuation effects in a metallic CDW compound having Fermi surface (FS) sheets with differing dimensionality. While spectra on the three-dimensional (3D) FS show typical Fermi-Dirac functionlike T dependence, those along the quasi-one-dimensional (1D) FS show formation of a pseudogap, starting at a much higher T than TCDW. Simultaneously, a van-Hove singularity consisting of the quasi-1D FS intersecting the 3D FS shows an increase of coherence. This demonstrates the role of CDW fluctuations on the spectral function, and relation to the dimensionality of the states, in a metallic CDW system.

原文English
文章編號140504
期刊Physical Review B - Condensed Matter and Materials Physics
71
發行號14
DOIs
出版狀態Published - 2005 十二月 15

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學

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