NUMERICAL STUDY OF LOCALIZATION OF DIRAC FERMIONS ON A LATTICE IN 2 DIMENSIONS

被引：36

作者：

HATSUGAI, Y

LEE, PA

机构：

[1] Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.48.4204

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We studied the effects of impurities on Dirac fermions numerically. We used a tight-binding Hamiltonian of fermions with the magnetic flux equal to pi per plaquette for the model. A small amount of strong impurities create states near the zero energy and strong localization of these states is observed. Our results support a recent proposal of localization effects in a gapless d-wave superconductor.

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页码：4204 / 4207

页数：4

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