Stationary-phase slip state in quasi-one-dimensional rings
Stationary-phase slip state in quasi-one-dimensional rings
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DOI：
10.1103/physrevb.66.054531
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发表时间：
2002-03
影响因子：
3.7
通讯作者：
D. Vodolazov;B. Baelus;F. Peeters
中科院分区：
文献类型：
--
作者：
D. Vodolazov;B. Baelus;F. Peeters
研究了序参量在一点为零的环中的非均匀超导态。这种状态的特征在于在序参数变为零的点处相位跳变π。在均匀环中，这样的状态是鞍点状态，因此是不稳定的。然而，对于非均匀环，例如，几何或物理参数的变化或附接的导线的变化，这种状态可以稳定，并且可以通过实验实现。
The nonuniform superconducting state in a ring in which the order parameter vanishing at one point is studied. This state is characterized by a jump of the phase by π at the point where the order parameter becomes zero. In uniform rings such a state is a saddle-point state and consequently unstable. However, for nonuniform rings with, e.g., variations of geometrical or physical parameters or with attached wires this state can be stabilized and may be realized experimentally.