An unconventional vortex state in a superconducting bilayer where one layer has a hole
An unconventional vortex state in a superconducting bilayer where one layer has a hole
复制标题
DOI：
10.1016/j.ssc.2018.04.012
复制
发表时间：
2018-09
影响因子：
2.1
通讯作者：
Y. Tanaka;H. Yamamori;T. Yanagisawa;T. Nishio;S. Arisawa
中科院分区：
文献类型：
--
作者：
Y. Tanaka;H. Yamamori;T. Yanagisawa;T. Nishio;S. Arisawa
当只有第二层有空洞时，超薄超导双层会产生一个无核的分数涡旋。量子化被空穴打破，正常的核心消失了。磁通不再局限于正常核心附近，其在孔洞周围的密度分布变得类似于铬焦糖的密度分布；磁通密度的发散沿中心截断。我们提出了一种实现无芯分数涡的实用装置的基本设计。
An ultrathin superconducting bilayer creates a coreless fractional vortex when only the second layer has a hole. The quantization is broken by the hole, and the normal core disappears. The magnetic flux is no longer confined near the normal core, and its density profile around the hole becomes similar to that of a cr\`eme caramel; the divergence of the magnetic flux density is truncated around the center. We propose basic design of a practical device to realize a coreless fractional vortex.