TY - JOUR
T1 - Inversion solution of the equation of motion and flux relaxation law in high Tc superconductors YBCO
AU - Dai, Xianxi
AU - Hor, P. H.
AU - Gao, Li
AU - Chu, C. W.
N1 - Funding Information:
The authors would like to thank the supports (through the Texas Center for Superconductivity) of the NSF Low temperature Physics Program Grant No. DMR 86-126539, DARPA Grant No. MDA 972-88-G-002, NASA Grant No. NAGW-977, TCSUH and the T.L.L. Temple Foundation. One of the authors (Dai) also would like to express his gratitude to Professor C.S. Ting, Dr. L.M. Xie and Dr. Zj. Huang for their helpful discussions and his sincere thanks for the hospitality of the Texas Center for Superconductivity at the University of Houston.
PY - 1992/9/21
Y1 - 1992/9/21
N2 - Recently studies of flux relaxation of YBCO in the wide time window have been successful. One also meets the problem of parameter uncertainty in nonlinear fitting. In this Letter an analytic solution of the flux equation of motion of the vortex glass or the collective pinning model is obtained by inversion. The comparison of the calculated results with experimental data shows a satisfactory agreement. The problem of parameter uncertainty is solved successfully. The comparison results clearly support the vortex glass or collective pinning model. An empirical relaxation law (called here the ArcG law) is suggested and discussed.
AB - Recently studies of flux relaxation of YBCO in the wide time window have been successful. One also meets the problem of parameter uncertainty in nonlinear fitting. In this Letter an analytic solution of the flux equation of motion of the vortex glass or the collective pinning model is obtained by inversion. The comparison of the calculated results with experimental data shows a satisfactory agreement. The problem of parameter uncertainty is solved successfully. The comparison results clearly support the vortex glass or collective pinning model. An empirical relaxation law (called here the ArcG law) is suggested and discussed.
UR - http://www.scopus.com/inward/record.url?scp=18444414685&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=18444414685&partnerID=8YFLogxK
U2 - 10.1016/0375-9601(92)90586-B
DO - 10.1016/0375-9601(92)90586-B
M3 - Article
AN - SCOPUS:18444414685
VL - 169
SP - 161
EP - 166
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
SN - 0375-9601
IS - 3
ER -