OBSERVATION OF AHARONOV-BOHM OSCILLATIONS IN THE MAGNETORESISTANCE OF A GAAS/ALGAAS QUANTUM-DOT

被引：5

作者：

BIRD, JP

ISHIBASHI, K

AOYAGI, Y

SUGANO, T

机构：

[1] Nanoelectronics Materials Laboratory, The Institute for Physical

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1994年 / 33卷 / 5A期

关键词：

QUANTUM DOT; AHARONOV-BOHM EFFECT; EDGE STATE; COULOMB BLOCKADE; GAAS/ALGAAS;

D O I：

10.1143/JJAP.33.2509

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We discuss the observation of Aharonov-Bohm oscillations in the magnetoresistance of a 1 mum GaAs/AlGaAs quantum dot. The oscillation period of 6 mT gives good agreement with the expected dimensions of the dot, implying Coulomb blockade effects to be insignificant in this case. The oscillations wash out at temperatures above 0.5 K, consistent with the expected energy spacing of the discrete states within the dot.

引用

收藏

页码：2509 / 2510

页数：2

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