ELECTRON FOCUSING WITH MULTIPARALLEL ONE-DIMENSIONAL CHANNELS MADE BY FOCUSED ION-BEAM

被引：54

作者：

NAKAMURA, K ^{[1
]}

TSUI, DC ^{[1
]}

NIHEY, F ^{[1
]}

TOYOSHIMA, H ^{[1
]}

ITOH, T ^{[1
]}

机构：

[1] PRINCETON UNIV,DEPT ELECT ENGN,PRINCETON,NJ 08544

来源：

APPLIED PHYSICS LETTERS | 1990年 / 56卷 / 04期

关键词：

D O I：

10.1063/1.102793

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Electron focusing effect is observed in a two-dimensional electron gas using samples with simple multiparallel one-dimensional channels made by a Be focused ion beam (FIB). Subharmonics and harmonics are resolved; their strengths allow a direct determination of the elastic scattering length le =1.8 μm and the specularity coefficient p=0.35 for electron reflection at the boundary defined by the FIB. The temperature dependence of the focusing effect is much weaker than the Shubnikov-de Haas effect.

引用

页码：385 / 387

页数：3

共 12 条

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