Work

Phenomenological single-particle Green's function for the pseudogap and superconducting phases of high- Tc cuprates

Year: 2020

Type: article

Abstract: We present a phenomenological Green's function to characterize the superconducting and pseudogap phases of the cuprates based on a microscopic theory of doped Mott insulators.In this framework, the "Fermi-arc" and "kink" phenomena observed by angle-resolved photoemission spectroscopy experiments in the pseudogap phase can be systematically explained as a function of doping, which are further connected to the two-gap feature in the superconducting phase with dichotomy between the nodal and antinodal physics.We demonstrate that a phase-string-induced fractionalization plays the key role in giving rise to such a peculiar Green's function with a unique two-component structure.

Source: Physical Review Research

DOI: 10.1103/physrevresearch.2.023398

Authors: Jian-Hao Zhang, Sen Li, Yao Ma, Yigui Zhong, Hong Ding, Zheng-Yu Weng

Institutions: Tsinghua University, Xi'an University of Technology, Chinese Academy of Sciences, Institute of Physics, University of Chinese Academy of Sciences

Language: Latvian

Topic: Physics of Superconductivity and Magnetism

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,625

Funders: National Natural Science Foundation of China, Ministry of Science and Technology of the People's Republic of China