Fermi arcs in the superconducting clustered state for underdoped cuprate superconductors.
Fermi arcs in the superconducting clustered state for underdoped cuprate superconductors.
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DOI：
10.1103/physrevlett.101.177001
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发表时间：
2008-02
影响因子：
8.6
通讯作者：
G. Alvarez;E. Dagotto
中科院分区：
文献类型：
--
作者：
G. Alvarez;E. Dagotto
用蒙特卡罗方法研究了超导团簇形成态的单粒子谱函数。簇具有相似的SC幅度，但随机分布的相位。这种状态是稳定的竞争与反铁磁性预期将存在于铜酸盐和淬火后的无序引入。费米面由不连续的线段组成，即，在临界温度T_（c）和团簇形成温标T* 之间观察到费米弧。
The one-particle spectral function of a state formed by superconducting (SC) clusters is studied via Monte Carlo techniques. The clusters have similar SC amplitudes but randomly distributed phases. This state is stabilized by competition with the antiferromagnetism expected to be present in the cuprates and after quenched disorder is introduced. A Fermi surface composed of disconnected segments, i.e., Fermi arcs, is observed between the critical temperature T_(c) and the cluster formation temperature scale T*.