Origin of shadow bands in high-Tc cuprate superconductors studied by high-resolution angle-resolved photoemission spectroscopy

2007 ◽  
Vol 463-465 ◽  
pp. 48-51
Author(s):  
K. Nakayama ◽  
T. Dobashi ◽  
T. Sato ◽  
T. Takahashi ◽  
T. Kondo ◽  
...  
Keyword(s):  
High Resolution ◽  
Cuprate Superconductors ◽  
Photoemission Spectroscopy ◽  
High Tc ◽  
Angle Resolved Photoemission Spectroscopy

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.

High Resolution Photoelectron Study of the Optimum Oxygen Doping Levels in High Tc Superconductors

1993 ◽  
Vol 307 ◽  
Author(s):  
R. J. Kelley ◽  
X. C. Cai ◽  
Jian Ma ◽  
D. C. Larbalestier ◽  
M. Onellion
Keyword(s):  
High Resolution ◽  
Electronic Properties ◽  
Cuprate Superconductors ◽  
Underlying Mechanism ◽  
Oxygen Stoichiometry ◽  
Photoemission Spectroscopy ◽  
Standard Material ◽  
Resonant Photoemission ◽  
Angle Resolved Photoemission Spectroscopy ◽  
Photoelectron Study

ABSTRACTThe materials and electronic properties of the new cuprate superconductors are critically dependent upon both the oxygen stoichiometry and annealing history of the material. Improving Jc, Tc, and determining the underlying mechanism of superconductivity depend on a better understanding of these effects. In the study of Bi2Sr2CaCu2O8-δ we have combined standard material characterization techniques with high resolution angle resolved photoemission spectroscopy and resonant photoemission spectroscopy to illuminate these issues. Specifically, we make high quality single crystals of BSCCO and then anneal in different atmospheres and pressures. We correlate this with c-axis resistivity, a, b-plane resistivity, and resonant photoemission spectroscopy. In this way we can explain the macroscopic transport properties in terms of the electronic properties of the material determined from photoemission. We find that we can change the c-axis resistivity from non-metallic to metallic by adding oxygen and that this correlates with increased oscillator strength in the c-axis direction at the Fermi level.

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

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.

scholarly journals A tunable low-energy photon source for high-resolution angle-resolved photoemission spectroscopy

2012 ◽  
Vol 83 (11) ◽  
pp. 113103 ◽  
Author(s):  
John W. Harter ◽  
Philip D. C. King ◽  
Eric J. Monkman ◽  
Daniel E. Shai ◽  
Yuefeng Nie ◽  
...  
Keyword(s):  
High Resolution ◽  
Low Energy ◽  
Photoemission Spectroscopy ◽  
Energy Photon ◽  
Angle Resolved Photoemission Spectroscopy ◽  
Photon Source
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