“多孔”涡旋物质的熔化
超导电性
2009-11-10 v1
摘要
苦味酸装饰和磁光研究表明，在重离子辐照的超导体中，当涡旋数量超过柱状缺陷时，会形成“多孔”涡旋物质。在这种状态下，有序的涡旋微晶嵌入在由柱状缺陷钉扎的刚性涡旋基质的“孔隙”中。微晶通过一级相变熔化，而基质保持固态。熔化温度随柱状缺陷密度增加而升高，并最终转变为连续相变。在高温下，熔化线上出现一个尖锐的扭结，标志着从微晶熔化到刚性基质熔化的突然转变。
引用
@article{arxiv.cond-mat/0301227,
title = {Melting of 'porous' vortex matter},
author = {S. S. Banerjee and A. Soibel and Y. Myasoedov and M. Rappaport and E. Zeldov and M. Menghini and Y. Fasano and F. de la Cruz and C. J. van der Beek and M. Konczykowski and T. Tamegai},
journal= {arXiv preprint arXiv:cond-mat/0301227},
year = {2009}
}
备注
(1) Paper to appear in Physical Review Letters. (2) 4 pages of text and 5 figures (3 figures in jpg and 2 figures in ps format). (3) Additional information about this work and Colored movies of the melting process can be obtained from http://www.weizmann.ac.il/home/fnsup/research-porous.html#movies