Fermi surface geometry and the ultrasonic attenuation of a clean d-wave superconductor

1999 ◽  
Author(s):  
E. J. Nicol ◽  
I. Vekhter ◽  
J. P. Carbotte
Keyword(s):  
Fermi Surface ◽  
Ultrasonic Attenuation ◽  
Surface Geometry ◽  
D Wave

ULTRASONIC ATTENUATION IN d-WAVE SUPERCONDUCTORS

2001 ◽  
Vol 15 (09n10) ◽  
pp. 269-276 ◽  
Author(s):  
TRIBIKRAM GUPTA ◽  
D. M. GAITONDE
Keyword(s):  
Dopant Concentration ◽  
Ultrasonic Attenuation ◽  
Mean Field Theory ◽  
Mean Field ◽  
Square Lattice ◽  
Clean Limit ◽  
Sign Change ◽  
Attenuation Rate ◽  
Interacting Electrons ◽  
D Wave

We consider a BCS-like model of interacting electrons on a square lattice. Within mean field theory, our model has an instability towards the formation of a d-wave superconducting state. We calculate the longitudinal ultrasonic attenuation rate in the superconducting phase in the clean limit for parameters appropriate to the cuprates. We find that the temperature dependence of the attenuation rate is similar to that observed in conventional superconductors for phonon wavevectors along the direction of the anti-nodes of the gap. However, the attenuation rate for phonon wavevectors along the nodal direction is found to be strikingly different in its temperature and doping dependence. The attenuation rate α S (T) increases in magnitude and shows a sign change in its curvature (when plotted as a function of temperature) with increasing value of dopant concentration.

Strain dependence of the Fermi surface and ultrasonic attenuation in tin

1969 ◽  
Vol 30 (4) ◽  
pp. 235-236 ◽  
Author(s):  
J.M. Perz ◽  
R.H. Hum ◽  
P.T. Coleridge
Keyword(s):  
Fermi Surface ◽  
Ultrasonic Attenuation ◽  
Strain Dependence

On the Fermi surface geometry and antiferromagnetism of YBa2Cu3O6+x

2000 ◽  
Vol 336 (1-2) ◽  
pp. 157-161 ◽  
Author(s):  
V.S Oudovenko ◽  
S.Y Savrasov ◽  
O.K Andersen
Keyword(s):  
Fermi Surface ◽  
Surface Geometry

Consequences of Fermi surface geometry

1989 ◽  
Vol 162-164 ◽  
pp. 769-770
Author(s):  
Walter A. Harrison
Keyword(s):  
Fermi Surface ◽  
Surface Geometry

Ultrasonic Attenuation and the Fermi Surface of Arsenic

1965 ◽  
Vol 140 (4A) ◽  
pp. A1355-A1364 ◽  
Author(s):  
J. B. Ketterson ◽  
Y. Eckstein
Keyword(s):  
Fermi Surface ◽  
Ultrasonic Attenuation

Effect of Fermi Surface Geometry on Electron-Electron Scattering

1971 ◽  
Vol 4 (2) ◽  
pp. 302-311 ◽  
Author(s):  
Christopher Hodges ◽  
Henrik Smith ◽  
J. W. Wilkins
Keyword(s):  
Fermi Surface ◽  
Electron Scattering ◽  
Surface Geometry
Sign in / Sign up

Export Citation Format

Share Document