High resolution angle-resolved photoemission spectroscopy on Cu-based and Fe-based high-Tc superconductors

2010 ◽  
Vol 207 (12) ◽  
pp. 2674-2692 ◽  
Author(s):  
Xingjiang Zhou ◽  
Guodong Liu ◽  
Jianqiao Meng ◽  
Wentao Zhang ◽  
Haiyun Liu ◽  
...  
Keyword(s):  
High Resolution ◽  
Photoemission Spectroscopy ◽  
High Tc Superconductors ◽  
High Tc ◽  
Angle Resolved Photoemission Spectroscopy

Direct observation of flux-creep in high-Tc superconductors using the high-resolution Faraday effect

1992 ◽  
Vol 190 (4) ◽  
pp. 557-562 ◽  
Author(s):  
M.R. Koblischka ◽  
Th. Schuster ◽  
B. Ludescher ◽  
H. Kronmüller
Keyword(s):  
High Resolution ◽  
Direct Observation ◽  
Faraday Effect ◽  
Flux Creep ◽  
High Tc Superconductors ◽  
High Tc

scholarly journals Observation of small Fermi pockets protected by clean CuO2 sheets of a high-Tc superconductor

Science ◽  
2020 ◽  
Vol 369 (6505) ◽  
pp. 833-838 ◽  
Author(s):  
So Kunisada ◽  
Shunsuke Isono ◽  
Yoshimitsu Kohama ◽  
Shiro Sakai ◽  
Cédric Bareille ◽  
...  
Keyword(s):  
Cuprate Superconductors ◽  
Parent Compound ◽  
High Critical Transition Temperature ◽  
Photoemission Spectroscopy ◽  
Hole Doping ◽  
Quantum Oscillation ◽  
Critical Transition Temperature ◽  
High Tc ◽  
Angle Resolved Photoemission Spectroscopy ◽  
Antiferromagnetic Ordering

In cuprate superconductors with high critical transition temperature (Tc), light hole-doping to the parent compound, which is an antiferromagnetic Mott insulator, has been predicted to lead to the formation of small Fermi pockets. These pockets, however, have not been observed. Here, we investigate the electronic structure of the five-layered Ba2Ca4Cu5O10(F,O)2, which has inner copper oxide (CuO2) planes with extremely low disorder, and find small Fermi pockets centered at (π/2, π/2) of the Brillouin zone by angle-resolved photoemission spectroscopy and quantum oscillation measurements. The d-wave superconducting gap opens along the pocket, revealing the coexistence between superconductivity and antiferromagnetic ordering in the same CuO2 sheet. These data further indicate that superconductivity can occur without contribution from the antinodal region around (π, 0), which is shared by other competing excitations.

Electronic structures of layered Ta2NiS5 single crystals revealed by high-resolution angle-resolved photoemission spectroscopy

2018 ◽  
Vol 6 (15) ◽  
pp. 3976-3981 ◽  
Author(s):  
Kejun Mu ◽  
Haiping Chen ◽  
Yuliang Li ◽  
Yingying Zhang ◽  
Pengdong Wang ◽  
...  
Keyword(s):  
High Resolution ◽  
Single Crystals ◽  
Electronic Structures ◽  
Photoemission Spectroscopy ◽  
One Dimensional ◽  
Angle Resolved Photoemission Spectroscopy

Using high-resolution angle-resolved photoemission spectroscopy (ARPES), we systematically studied the electronic structures of quasi-one-dimensional (1D) ternary material Ta2NiS5 single crystals.

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