Measurements of the compressibility of the composite fermion metallic state in a 2D electron system

被引：4

作者：

Dorozhkin, SI ^{[1
]}

Smet, JH

von Klitzing, K

Umansky, V

Wegscheider, W

Haug, RJ

Ploog, K

机构：

[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow District, Russia

[2] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[3] Weizmann Inst Sci, Braun Ctr Submicron Res, IL-76100 Rehovot, Israel

[4] Univ Regensburg, Inst Expt & Angew Phys, D-93040 Regensburg, Germany

[5] Univ Hannover, Inst Festkorperphys, D-30167 Hannover, Germany

[6] Paul Drude Inst Festkorperelekt, D-10117 Berlin, Germany

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2002年 / 12卷 / 1-4期

关键词：

fractional quantum Hall effect; composite fermions; compressibility;

D O I：

10.1016/S1386-9477(01)00252-1

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

It is well-established that the electron-electron interaction strongly affects the compressibility of a two-dimensional electron system at zero magnetic field and even leads to the negative sign of the compressibility. Surprisingly, we find that its contribution is almost identical for the metallic states of electrons at zero magnetic field and of composite fermions at Landau level filling 1/2. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：97 / 100

页数：4

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