Acoustoelectric Y-branch switch

被引：17

作者：

Talyanskii, VI ^{[1
]}

Graham, MR ^{[1
]}

Beere, HE ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.2176847

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report an experimental realization of an acoustoelectric Y-branch current switch. A "Y"-shaped mesa configuration with one source and two drain terminals is formed in a GaAs quantum well, which is free of carriers. A surface acoustic wave extracts electrons from the source contact and drives them in the form of packets residing in the wave's potential minima toward the branching point, where applied voltages on controlling side gates distribute the current between the branches. We discuss the application of the switch as a fast electrometer with sensitivity at the subelectron level. (c) 2006 American Institute of Physics.

引用

页数：3

共 22 条

[1] COULOMB BLOCKADE OF SINGLE-ELECTRON TUNNELING, AND COHERENT OSCILLATIONS IN SMALL TUNNEL-JUNCTIONS [J].

AVERIN, DV ;

LIKHAREV, KK .

JOURNAL OF LOW TEMPERATURE PHYSICS, 1986, 62 (3-4) :345-373

[2] Quantum computation using electrons trapped by surface acoustic waves [J].

Barnes, CHW ;

Shilton, JM ;

Robinson, AN .

PHYSICAL REVIEW B, 2000, 62 (12) :8410-8419

[3]

CAMERON TP, 1997, P 1997 IEEE ULTR S I, P11

[4] Impedance analysis of a radio-frequency single-electron transistor [J].

Cheong, HD ;

Fujisawa, T ;

Hayashi, T ;

Hirayama, Y ;

Jeong, YH .

APPLIED PHYSICS LETTERS, 2002, 81 (17) :3257-3259

[5] High-frequency acousto-electric single-photon source [J].

Foden, CL ;

Talyanskii, VI ;

Milburn, GJ ;

Leadbeater, ML ;

Pepper, M .

PHYSICAL REVIEW A, 2000, 62 (01) :4

[6] OBSERVATION OF SINGLE-ELECTRON CHARGING EFFECTS IN SMALL TUNNEL-JUNCTIONS [J].

FULTON, TA ;

DOLAN, GJ .

PHYSICAL REVIEW LETTERS, 1987, 59 (01) :109-112

[7]

GRAHAM MR, UNPUB

[8]

JOLOF J, 2000, PHYS REV LETT, V62, P16727

[9] Quantum steering of electron wave function in an InAs Y-branch switch -: art. no. 073117 [J].

Jones, GM ;

Yang, CH ;

Yang, MJ ;

Lyanda-Geller, YB .

APPLIED PHYSICS LETTERS, 2005, 86 (07) :1-3

[10] SINGLE-ELECTRON TRANSISTORS - ELECTROSTATIC ANALOGS OF THE DC SQUIDS [J].

LIKHAREV, KK .

IEEE TRANSACTIONS ON MAGNETICS, 1987, 23 (02) :1142-1145

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