Scaling of level statistics and critical exponent of disordered two-dimensional symplectic systems

被引：27

作者：

Schweitzer, L ^{[1
]}

Zharekeshev, IK ^{[1
]}

机构：

[1] UNIV HAMBURG,INST THEORET PHYS,D-20355 HAMBURG,GERMANY

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1997年 / 9卷 / 33期

关键词：

D O I：

10.1088/0953-8984/9/33/001

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The statistics of the energy eigenvalues at the metal-insulator transition of a two-dimensional disordered system with spin-orbit interaction is investigated numerically. The critical exponent nu is obtained from the finite-size scaling of the number J(0) which is related to the probability Q(n)(s) of having n energy levels within an interval of width s. In contrast to previous estimates, we find nu = 2.32 +/- 0.14 close to the value of the two-dimensional quantum Hall system.

引用

页码：L441 / L445

页数：5

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