Electron-phonon coupling induced pseudogap and the superconducting transition in Ba0.67K0.33BiO3

Details Electron-phonon coupling induced pseudogap and the superconducting transition in Ba0.67K0.33BiO3 Electron-phonon coupling induced pseudogap and the superconducting transition in Ba0.67K0.33BiO3

2001-06-04

arxiv.org/abs/cond-mat/0106039v1

Physics

Condensed Matter

Superconductivity

5 pages with 4 figures, submitted to Phys. Rev. Lett

Scientific paper

10.1103/PhysRevB.64.180509

We study the single particle density of states (DOS) across the superconducting transition (Tc = 31 K) in single-crystal Ba0.67K0.33BiO3 using ultrahigh resolution angle-integrated photoemission spectroscopy. The superconducting gap opens with a pile-up in the DOS, Delta(5.3 K) = 5.2 meV and 2Delta(0)/kBTc = 3.9. In addition, we observe a pseudogap below and above Tc, 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 Ba0.67K0.33BiO3.

Affiliated with

Also associated with

No associations

Rating

Electron-phonon coupling induced pseudogap and the superconducting transition in Ba0.67K0.33BiO3 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Electron-phonon coupling induced pseudogap and the superconducting transition in Ba0.67K0.33BiO3, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron-phonon coupling induced pseudogap and the superconducting transition in Ba0.67K0.33BiO3 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-114739