Photoemission Spectroscopy on High Temperature Superconductor, 2013 A Study of Bi2Sr2CaCu2O8 by Laser-Based Angle-Resolved Photoemission Springer Theses Series

This book mainly focuses on the study of the high-temperature superconductor Bi2Sr2CaCu2O8 by vacuum, ultra-violet, laser-based, angle-resolved photoemission spectroscopy (ARPES). A new form of electron coupling has been identified in Bi2212, which occurs in the superconducting state. For the first time, the Bogoliubov quasiparticle dispersion with a clear band back-bending has been observed with two peaks in the momentum distribution curve in the superconducting state at a low temperature. Readers will find useful information about the technique of angle-resolved photoemission and the study of high-temperature superconductors using this technique.
Dr. Wentao Zhang received his PhD from the Institute of Physics at the Chinese Academy of Sciences.

Introduction.- Angle-Resolved Photoemission Spectroscopy.- Growth of Bi2Sr2Ca1−xDyxCu2O8+δ Single Crystals.- Nodal Electron Coupling in the Bi2Sr2Ca1Cu2O8+δ.- High Energy Dispersion in Bi2Sr2Ca1Cu2O8+δ.- Normal Electron Self-Energy and Pairing Self-Energy in Bi2Sr2CaCu2O8.- Superconducting Gap and Pseudogap in Bi2Sr2CaCu2O8+δ.- Summary.

This is a prize winning thesis, nominated for Springer Theses by Chinese Academy of Sciences

Provides the evidence of a new form of electron coupling

Describes the new interpretation of the origin of high energy dispersion and high energy kink

Direct observation of Bogoliubov quasiparticle in momentum dispersion curve

Introduces energy gap and pseudogap revealed by super-high resolution ARPES

Includes supplementary material: sn.pub/extras