Tunneling spectroscopy of a La-Sr-Cu-O break junction: Evidence for strong-coupling superconductivity

1987 ◽  
Vol 35 (16) ◽  
pp. 8711-8713 ◽  
Author(s):  
John Moreland ◽  
A. F. Clark ◽  
L. F. Goodrich ◽  
H. C. Ku ◽  
R. N. Shelton
Keyword(s):  
Strong Coupling ◽  
Tunneling Spectroscopy ◽  
Break Junction

Unusual Strong-Coupling Effects in the Tunneling Spectroscopy of Optimally Doped and OverdopedBi2Sr2CaCu2O8+δ

1998 ◽  
Vol 80 (1) ◽  
pp. 153-156 ◽  
Author(s):  
Y. DeWilde ◽  
N. Miyakawa ◽  
P. Guptasarma ◽  
M. Iavarone ◽  
L. Ozyuzer ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Tunneling Spectroscopy ◽  
Coupling Effects

Evidence for Phonon-Mediated Coupling in Superconducting Ba0.6K0.4BiO3

1989 ◽  
Vol 156 ◽  
Author(s):  
D. G. Hinks ◽  
B. Dabrowski ◽  
D. R. Richards ◽  
J. D. Jorgensen ◽  
Shiyou Pei ◽  
...  
Keyword(s):  
Transition Temperature ◽  
Strong Coupling ◽  
Isotope Effect ◽  
Tunneling Spectroscopy ◽  
Superconducting Gap ◽  
Optical Phonons ◽  
Pairing Mechanism ◽  
Strongly Coupled ◽  
A Value ◽  
O Isotope

ABSTRACTSuperconducting Ba0.6K0.4BiO3, with a Tc of 30K, shows a large 18O isotope effect which indicates that phonons are involved in the pairing mechanism. Infrared reflectivity measurements indicate a value for the superconducting gap consistent with moderate coupling (2Δ/kTc = 3.5 ± 0.5). A mediating energy for pairing of about 40 meV would be required to obtain a Tc of 30K. Strong coupling of electrons by optical phonons (which are present in this material with energies up to 80 meV) could account for the observed transition temperature. Recent tunneling spectroscopy shows the presence of strongly coupled optical phonons in the 40 to 70 meV region, indicating that superconductivity in this material may be phonon mediated.

Erratum: Unusual Strong-Coupling Effects in the Tunneling Spectroscopy of Optimally Doped and OverdopedBi2Sr2CaCu2O8+δ[Phys. Rev. Lett. 80, 153 (1998)]

1998 ◽  
Vol 81 (2) ◽  
pp. 492-492 ◽  
Author(s):  
Y. DeWilde ◽  
N. Miyakawa ◽  
P. Guptasarma ◽  
M. Iavarone ◽  
L. Ozyuzer ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Tunneling Spectroscopy ◽  
Coupling Effects

Electron Tunneling Spectroscopy of SmB6 Studied by In Situ Nano-Break-Junction Method

2011 ◽  
Vol 11 (7) ◽  
pp. 6368-6370
Author(s):  
Hyun-Won Lee ◽  
Kyujoon Lee ◽  
Seongmin Choo ◽  
Nahyun Jo ◽  
Myung-Hwa Jung
Keyword(s):  
Electron Tunneling ◽  
Tunneling Spectroscopy ◽  
Break Junction ◽  
Electron Tunneling Spectroscopy

scholarly journals Break-junction Tunneling Spectroscopy of Superconducting FeSexTe1-x

2015 ◽  
Vol 65 ◽  
pp. 65-68 ◽  
Author(s):  
Toshikazu Ekino ◽  
Kouhei Nagasaka ◽  
Yuta Sakai ◽  
Akira Sugimoto ◽  
Alexander M. Gabovich
Keyword(s):  
Tunneling Spectroscopy ◽  
Break Junction
Sign in / Sign up

Export Citation Format

Share Document