Magnetization of a strongly interacting two-dimensional electron system in perpendicular magnetic fields

被引：29

作者：

Anissimova, S ^{[1
]}

Venkatesan, A

Shashkin, AA

Sakr, MR

Kravchenko, SV

Klapwijk, TM

机构：

[1] Northeastern Univ, Dept Phys, Boston, MA 02115 USA

[2] Delft Univ Technol, Kavli Inst Nanosci, NL-2628 CJ Delft, Netherlands

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

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.96.046409

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We measure the thermodynamic magnetization of a low-disordered, strongly correlated two-dimensional electron system in silicon in perpendicular magnetic fields. A new, parameter-free method is used to directly determine the spectrum characteristics (Lande g factor and the cyclotron mass) when the Fermi level lies outside the spectral gaps and the interlevel interactions between quasiparticles are avoided. Intralevel interactions are found to strongly modify the magnetization, without affecting the determined g(*) and m(*).

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页数：4

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