Phase transitions mediated by the nucleation of single vortices in a superconducting channel

作者：Sobnack M B^*; Kusmartsev F V

来源：Physica C-Superconductivity and Its Applications, 2013, 493: 80-81.

DOI：10.1016/j.physc.2013.03.032

• Quantised vortices
• Superconductivity
• Superfluidity
• Berezinski-Kosterlitz-Thouless phase transition

We study the nucleation of single vortices in a 2D channel in a superconducting/superfluid state which connects two bulk samples. Using real space renormalization group techniques, we show that boundary effects associated with the nucleation of single vortices drives the system to a phase transition at a temperature lower than the Berezinski-Kosterlitz-Thouless temperature.

• 出版日期2013-10