Physics – Condensed Matter – Superconductivity
Scientific paper
2011-03-18
Physical Review B 85 (2012) 064514
Physics
Condensed Matter
Superconductivity
4 pages, 4 figures
Scientific paper
Super-high resolution laser-based angle-resolved photoemission measurements have been performed on a high temperature superconductor Bi_2Sr_2CaCu_2O_8. The band back-bending characteristic of the Bogoliubov-like quasiparticle dispersion is clearly revealed at low temperature in the superconducting state. This makes it possible for the first time to experimentally extract the complex electron self-energy and the complex gap function in the superconducting state. The resultant electron self-energy and gap function exhibit features at ~54 meV and ~40 meV, in addition to the superconducting gap-induced structure at lower binding energy and a broad featureless structure at higher binding energy. These information will provide key insight and constraints on the origin of electron pairing in high temperature superconductors.
Bok Jin Mo
Chen Chuangtian
Choi Han-Yong
Dong Xiaoli
Gu G.-D.
No associations
LandOfFree
Extraction of Electron Self-Energy and Gap Function in the Superconducting State of Bi_2Sr_2CaCu_2O_8 Superconductor via Laser-Based Angle-Resolved Photoemission 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 Extraction of Electron Self-Energy and Gap Function in the Superconducting State of Bi_2Sr_2CaCu_2O_8 Superconductor via Laser-Based Angle-Resolved Photoemission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extraction of Electron Self-Energy and Gap Function in the Superconducting State of Bi_2Sr_2CaCu_2O_8 Superconductor via Laser-Based Angle-Resolved Photoemission will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-185001