Soliton in Two-Band Superconductor

作     者：Y. Tanaka 

作者机构：and Core Research for Evolutional Science and Technology Japan Science and Technology Corporation Kawaguchi Center Building 1-8 Honcho 4-chome Kawaguchi City Saitama Prefecture 332-0012 Japan 

出 版 物：《Physical Review Letters》 (Phys Rev Lett)

年 卷 期：2001年第88卷第1期

页      面：017002-017002页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

主　　题：Superconducting materials 

摘      要：There is a soliton in a superconductor having two bands (two-band superconductor), when the interband interaction is much smaller than the intraband interaction. This soliton is in a stable state. In the soliton the relative phase between two gap parameters rotates 0 to 2π (or −π to π), where each gap resides in each band. A phase slip of the superconducting order parameter is accompanied with the soliton. The phase slip is not n×2π where n is an integer. A soliton traps the flux inside the superconducting ring, of which magnitude is not integral multiples of the fluxoid quantum.