Effective mass suppression in a ferromagnetic two-dimensional electron liquid

被引：15

作者：

Asgari, Reza ^{[1
]}

Gokmen, T. ^{[2
]}

Tanatar, B. ^{[3
]}

Padmanabhan, Medini ^{[2
]}

Shayegan, M. ^{[2
]}

机构：

[1] Inst Res Fundamental Sci IPM, Sch Phys, Tehran 193955531, Iran

[2] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

[3] Bilkent Univ, Dept Phys, TR-06800 Ankara, Turkey

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 23期

关键词：

SELF-ENERGY; GAS; ENHANCEMENT;

D O I：

10.1103/PhysRevB.79.235324

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present numerical calculations of the electron effective mass in an interacting ferromagnetic two-dimensional electron system. We consider quantum interaction effects associated with the charge-density fluctuation-induced many-body vertex corrections. Our theory, which is free of adjustable parameters, reveals that the effective mass is suppressed (relative to its band value) in the strong-coupling limit, in good agreement with recent experimental results.

引用

页数：4

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