MESOSCOPIC ENHANCEMENT OF ORBITAL MAGNETISM

被引：17

作者：

HAJDU, J ^{[1
]}

SHAPIRO, B ^{[1
]}

机构：

[1] TECHNION ISRAEL INST TECHNOL,DEPT PHYS,IL-32000 HAIFA,ISRAEL

来源：

EUROPHYSICS LETTERS | 1994年 / 28卷 / 01期

关键词：

D O I：

10.1209/0295-5075/28/1/011

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study of isothermal magnetization of a two-dimensional electron gas confined in one direction by a parabolic potential. We find that under mesoscopic conditions, when both the thermal energy and the cyclotron energy are smaller than the characteristic energy HBARomega0 corresponding to the parabolic confinement, the magnetization exhibits large oscillations. In comparision to the Landau diamagnetism, the amplitude of these oscillations is enhanced by a factor square-root k(F) upsilon(F)/omega0, where k(F) and upsilon(F) are the Fermi wave number and velocity, respectively.

引用

页码：61 / 64

页数：4

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