Induced quantum dots and wires: Electron storage and delivery

被引：21

作者：

Bednarek, S. ^{[1
]}

Szafran, B. ^{[1
]}

Dudek, R. J. ^{[1
]}

Lis, K. ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, PL-30059 Krakow, Poland

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.100.126805

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that quantum dots and quantum wires are formed underneath metal electrodes deposited on a planar semiconductor heterostructure containing a quantum well. The confinement is due to the self-focusing mechanism of an electron wave packet interacting with the charge induced on the metal surface. Induced quantum wires guide the transfer of electrons along metal paths and induced quantum dots store the electrons in specific locations of the nanostructure. Induced dots and wires can be useful for devices operating on the electron spin. An application for a spin readout device is proposed.

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页数：4

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