Electron-phonon coupling induced pseudogap and the superconducting transition in (formula presented)

H. Uwe, A. Chainani, T. Yokoya, S. Shin, T. Kiss, T. Nishio

研究成果: Article同行評審

摘要

We study the single-particle density of states (DOS) across the superconducting transition (formula presented) in single-crystal (formula presented) using ultrahigh resolution angle-integrated photoemission spectroscopy. The superconducting gap opens with a pileup in the DOS, (formula presented) and (formula presented) In addition, we observe a pseudogap below and above (formula presented) occurring as a suppression in intensity over an energy scale up to the breathing mode phonon (∼70 meV). The results indicate electron-phonon coupling induces a pseudogap in (formula presented)

原文English
期刊Physical Review B - Condensed Matter and Materials Physics
64
發行號18
DOIs
出版狀態Published - 2001

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學

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