Density of bound states in a vortex core.
Density of bound states in a vortex core.
复制标题
涡核中的束缚态密度。
DOI：
10.1103/physrevb.41.4819
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
Klein
中科院分区：
文献类型：
--
作者：
Klein
从克雷默和Pesch的束缚态理论导出的局域态密度与最近的扫描隧道实验进行了比较。近似地考虑了杂质和有限磁通线距离的影响。在孤立涡区，人们发现定性的，但不是定量的，与迄今为止报道的所有实验数据的协议。结果敏感地取决于杂质含量。一个非单调行为的状态密度的函数的磁通线中心的距离进行了预测。在束缚于核的方向依赖的单粒子激发方面的状态密度的意想不到的属性进行了讨论。
The local density of states as derived from Kramer and Pesch's theory of bound states in a vortex core is compared with recent scanning-tunneling experiments. Effects of impurities and finite flux-line distance are approximately taken into account. In the isolated vortex regime one finds qualitative, but not quantitative, agreement with all experimental data reported so far. The results depend sensitively on impurity content. A nonmonotonic behavior of the density of states as a function of the distance from the flux-line center is predicted. The unexpected properties of the density of states are discussed in terms of the direction-dependent single-particle excitations bound to the core.