Evidence for a c-axis plasma mode in layered superconductors and its relation to the Josephson and pancake vortices

1996 ◽  
Author(s):  
Ophelia K. Tsui
Keyword(s):  
Layered Superconductors ◽  
Plasma Mode ◽  
Pancake Vortices

Josephson plasma mode in the mixed state of long-junction and layered superconductors

1997 ◽  
Vol 55 (13) ◽  
pp. 8482-8489 ◽  
Author(s):  
L. N. Bulaevskii ◽  
D. Domínguez ◽  
M. P. Maley ◽  
A. R. Bishop
Keyword(s):  
Mixed State ◽  
Layered Superconductors ◽  
Plasma Mode ◽  
Josephson Plasma

scholarly journals Reentrant dynamics of driven pancake vortices in layered superconductors

2016 ◽  
Vol 94 (2) ◽  
Author(s):  
H. J. Zhao ◽  
Wenjuan Wu ◽  
Wei Zhou ◽  
Z. X. Shi ◽  
V. R. Misko ◽  
...  
Keyword(s):  
Layered Superconductors ◽  
Pancake Vortices

scholarly journals Time-Correlated Vortex Tunneling in Layered Superconductors

2017 ◽  
Author(s):  
John H. Miller Jr. ◽  
Martha Y. S. Villagrán
Keyword(s):  
Piecewise Linear ◽  
Threshold Current ◽  
Critical Currents ◽  
Pair Creation ◽  
Coated Conductors ◽  
Layered Superconductors ◽  
High Tc ◽  
Tunneling Matrix Element ◽  
Pancake Vortices ◽  
Abrikosov Vortices

The nucleation and dynamics of Josephson and Abrikosov vortices determine the critical currents of layered high-Tc superconducting (HTS) thin films, grain boundaries, and coated conductors, so understanding their mechanisms is of crucial importance. Here we treat pair creation of Josephson and Abrikosov vortices in layered superconductors as a secondary Josephson effect, in which each full vortex is viewed as a composite fluid of micro-vortices, such as pancake vortices, which tunnel coherently via a tunneling matrix element. We introduce a two-terminal magnetic (Weber) blockade effect that blocks tunneling below a threshold current, and simulate time-correlated vortex tunneling above threshold. The model shows nearly precise agreement with voltage-current (V-I) characteristics of HTS cuprate grain boundary junctions, which becomes more concave rounded as temperature decreases, and also explains the piecewise linear V-I behavior observed in iron-pnictide bicrystal junctions and other HTS devices. When applied to either Abrikosov or Josephson pair creation, the model explains a plateau seen in plots of critical current vs. thickness of HTS coated conductors. The observed correlation between theory and experiment strongly supports the proposed quantum picture of vortex nucleation and dynamics in layered superconductors.

Heat capacity of pancake vortices in layered superconductors

1996 ◽  
Vol 54 (22) ◽  
pp. 16116-16123 ◽  
Author(s):  
Alexander L. Fetter ◽  
Satyadev Rajesh Patel
Keyword(s):  
Heat Capacity ◽  
Layered Superconductors ◽  
Pancake Vortices

Comment on “Has a Josephson-Plasma Mode Been Observed in Layered Superconductors?”

1998 ◽  
Vol 81 (16) ◽  
pp. 3551-3551 ◽  
Author(s):  
M. B. Gaifullin ◽  
Y. Matsuda ◽  
L. N. Bulaevskii
Keyword(s):  
Layered Superconductors ◽  
Plasma Mode ◽  
Josephson Plasma
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