Abstract
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)
| Original language | English |
|---|---|
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 64 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 2001 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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