Hofstadter butterflies in a modulated magnetic field: Superconducting wire network with magnetic decoration
Hofstadter butterflies in a modulated magnetic field: Superconducting wire network with magnetic decoration
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DOI：
10.1103/physrevb.70.144524
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发表时间：
2004-10
影响因子：
3.7
通讯作者：
Y. Iye;E. Kuramochi;M. Hara;A. Endo;S. Katsumoto
中科院分区：
文献类型：
--
作者：
Y. Iye;E. Kuramochi;M. Hara;A. Endo;S. Katsumoto
计算了空间调制磁场下紧束缚电子系统的Hofstadter蝶形谱。的依赖性的频谱上的对称性和强度的空间变化的磁场被阐明。超导网络在介观磁结构修饰产生的空间调制磁场下的Little-Parks振荡表现出再现相应Hofstadter谱边缘的行为。
Hofstadter butterfly spectra of tight-binding electron systems under spacially modulated magnetic fields are calculated. The dependence of the spectrum on the symmetry and strength of the spatially varying magnetic field is elucidated. The Little-Parks oscillation of the superconducting network under a spatially modulated magnetic field produced by decoration with mesoscopic magnetic structure exhibits behavior reproducing the edge of the corresponding Hofstadter spectra.