Gapless superconductivity and vortex-antivortex pair dissociation in dirty 2D superconductors

1984 ◽  
Vol 40 (9) ◽  
pp. 269-276 ◽  
Author(s):  
C. Di Maueo ◽  
G. Giaquinta
Keyword(s):  
2D Superconductors ◽  
Gapless Superconductivity

Intrinsic gapless superconductivity in overdoped (Y,Ca)Ba2Cu3Oy: Study of in-plane optical spectra

2011 ◽  
Vol 471 (21-22) ◽  
pp. 701-703 ◽  
Author(s):  
E. Uykur ◽  
K. Tanaka ◽  
T. Masui ◽  
S. Miyasaka ◽  
S. Tajima
Keyword(s):  
Optical Spectra ◽  
Gapless Superconductivity

scholarly journals Highly crystalline 2D superconductors

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Yu Saito ◽  
Tsutomu Nojima ◽  
Yoshihiro Iwasa
Keyword(s):  
2D Superconductors

Gapless Superconductivity

2018 ◽  
pp. 1035-1105 ◽  
Author(s):  
Kazumi Maki
Keyword(s):  
Gapless Superconductivity

Vortex Pair Unbinding in 2D Superconductors and Surface Effects

1984 ◽  
pp. 885-889
Author(s):  
G. Giaquinta ◽  
C. Di Mauro ◽  
R. Fazio
Keyword(s):  
Vortex Pair ◽  
Surface Effects ◽  
2D Superconductors

DENSITY OF STATES AND ORDER PARAMETER IN DIRTY SUPERCONDUCTORS WITH A WEAKLY BROKEN d-WAVE SYMMETRY

1996 ◽  
Vol 10 (12) ◽  
pp. 537-544 ◽  
Author(s):  
SERGEI V. POKROVSKY
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Density Of States ◽  
Order Parameter ◽  
Zero Temperature ◽  
Scattering Rate ◽  
Wave Symmetry ◽  
Direct Calculations ◽  
D Wave ◽  
Gapless Superconductivity

It is shown by direct calculations that in a superconductor with a slightly violated d-wave symmetry of the order parameter (OP) the impurity driven phase transition from the gapless superconductivity to a state with a finite gap takes place at zero temperature. The corresponding scattering rate is close to the value at which the superconductivity vanishes in the d-superconductor. The behavior of the transition temperature, the OP and the density of states (DOS) is analyzed. The model is plausibly relevant to the BSCCO 2:2:1:2.

INVESTIGATING DYNAMIC VORTEX TRANSITIONS IN 2D SUPERCONDUCTORS

2009 ◽  
Vol 23 (19) ◽  
pp. 2399-2408
Author(s):  
I. M. OBAIDAT ◽  
U. AL KHAWAJA ◽  
M. BENKRAOUDA
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Driving Force ◽  
Critical Currents ◽  
Flow State ◽  
Pinning Centers ◽  
Average Speed ◽  
Vortex States ◽  
Dynamics Simulations ◽  
2D Superconductors

Extensive molecular dynamics simulations were performed on superconducting samples with periodic square arrays of pinning centers where several strengths, sizes, and densities of the pinning centers were considered. By calculating the average speed of the vortices as the driving force increases, we defined two critical currents that divide the states of the vortices into three different states with respect to the magnitude of the driving current. These vortex states are a pinned state, a disordered flow state where only some of the vortices flow in some vortex channels, and an ordered flow state where all the vortices flow in an ordered and collective manner. We have clarified the roles of the number of vortices, the size, the strength, and the number of pinning centers in these three states at several temperatures.

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