scholarly journals Phase diagram of randomly pinned vortex matter in layered superconductors: Dependence on the details of the point pinning

2007 ◽  
Vol 76 (18) ◽  
Author(s):  
Chandan Dasgupta ◽  
Oriol T. Valls
2016 ◽  
Vol 29 (3) ◽  
pp. 035602 ◽  
Author(s):  
Qingyou Meng ◽  
Christopher N Varney ◽  
Hans Fangohr ◽  
Egor Babaev

2018 ◽  
Vol 32 (25) ◽  
pp. 1850281 ◽  
Author(s):  
Qingmiao Nie ◽  
Haibin Li

Nonequilibrium phase transitions of vortex matter with a strong random pinning potential in layered superconductors are investigated by the three-dimensional frustrated anisotropic XY model and resistively-shunted junction dynamics at low, middle and high-temperatures, respectively. It is found that a disorder to order phase transition driven by an external current can be obtained at a low-temperature, however, a reordering configuration does not occur at a high-temperature. With the competition between thermal noise, disorder pins and current, the vortex matter can even show the reordering process twice at an intermediate temperature, giving a clear evidence of dc driven vortex lattice reorganization.


2000 ◽  
Vol 13 (5) ◽  
pp. 629-631 ◽  
Author(s):  
Terukazu Nishizaki ◽  
Norio Kobayashi

2020 ◽  
Vol 6 (7) ◽  
pp. eaay8946 ◽  
Author(s):  
Zhenzhong Shi ◽  
P. G. Baity ◽  
T. Sasagawa ◽  
Dragana Popović

The phase diagram of underdoped cuprates in a magnetic field (H) is key to understanding the anomalous normal state of these high-temperature superconductors. However, the upper critical field (Hc2), the extent of superconducting (SC) phase with vortices, and the role of charge orders at high H remain controversial. Here we study stripe-ordered La-214, i.e., cuprates in which charge orders are most pronounced and zero-field SC transition temperatures Tc0 are lowest. This enables us to explore the vortex phases in a previously inaccessible energy scale window. By combining linear and nonlinear transport techniques sensitive to vortex matter, we determine the T − H phase diagram, directly detect Hc2, and reveal novel properties of the high-field ground state. Our results demonstrate that quantum fluctuations and disorder play a key role as T → 0, while the high-field ground state is likely a metal, not an insulator, due to the presence of stripes.


2003 ◽  
Vol 384 (1-2) ◽  
pp. 143-148 ◽  
Author(s):  
C.J Olson ◽  
C Reichhardt ◽  
R.T Scalettar ◽  
G.T Zimányi ◽  
N Grønbech-Jensen

2000 ◽  
Vol 13 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Terukazu Nishizaki ◽  
Norio Kobayashi

2010 ◽  
Vol 234 (1) ◽  
pp. 012013 ◽  
Author(s):  
G Fuchs ◽  
S-L Drechsler ◽  
N Kozlova ◽  
V Grinenko ◽  
J Freudenberger ◽  
...  

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