The quantum Hall effect in graphene samples and the relativistic Dirac effective action

被引：15

作者：

Beneventano, C. G.

Giacconi, Paola

Santangelo, E. M.

Soldati, Roberto

机构：

[1] Natl Univ La Plata, Dept Fis, RA-1900 La Plata, Argentina

[2] Consejo Nacl Invest Cient & Tecn, IFLP, RA-1900 La Plata, Argentina

[3] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[4] Univ Bologna, Dipartmento Fis, Bologna, Italy

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | 2007年 / 40卷 / 24期

关键词：

PARITY VIOLATION; LANDAU PROBLEM; BERRYS PHASE; GRAPHITE; GAS;

D O I：

10.1088/1751-8113/40/24/F01

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the Euclidean effective action per unit area and the charge density for a Dirac field in a two-dimensional (2D) spatial region, in the presence of a uniform magnetic field perpendicular to the 2D plane, at finite temperature and density. In the limit of zero temperature we reproduce, after performing an adequate Lorentz boost, the Hall conductivity measured for different kinds of graphene samples, depending upon the phase choice in the fermionic determinant.

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收藏

页码：F435 / F442

页数：8

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