A radio frequency single-electron transistor based on an InAs/InP heterostructure nanowire

被引：43

作者：

Nilsson, Henrik A. ^{[1
]}

Duty, Tim ^{[3
]}

Abay, Simon ^{[2
]}

Wilson, Chris ^{[2
]}

Wagner, Jakob B. ^{[1
]}

Thelander, Claes ^{[1
]}

Delsing, Per ^{[2
]}

Samuelson, Lars ^{[1
]}

机构：

[1] Lund Univ, Polymer & Mat Chem nCHREM, S-22100 Lund, Sweden

[2] Chalmers, S-41296 Gothenburg, Sweden

[3] Univ Queensland, Sch Phys Sci, St Lucia, Qld 4072, Australia

来源：

NANO LETTERS | 2008年 / 8卷 / 03期

关键词：

D O I：

10.1021/nl0731062

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate radio frequency single-electron transistors fabricated from epitaxially grown InAs/InP heterostructure nanowires. Two sets of double-barrier wires with different barrier thicknesses were grown. The wires were suspended 15 nm above a metal gate electrode. Electrical measurements on a high-resistance nanowire showed regularly spaced Coulomb oscillations at a gate voltage from - 0.5 to at least 1.8 V. The charge sensitivity was measured to 32 mu e(rms) Hz (- 1/2) at 1.5 K. A low-resistance single-electron transistor showed regularly spaced oscillations only in a small gate-voltage region just before carrier depletion. This device had a charge sensitivity of 2.5 mu e(rms) Hz (- 1/2). At low frequencies this device showed a typical 1/f noise behavior, with a level extrapolated to 300 mu e(rms) Hz (- 1/2) at 10 Hz.

引用

页码：872 / 875

页数：4

共 26 条

[1] Nonequilibrium quasiparticles and 2e periodicity in single-Cooper-pair transistors -: art. no. 066802 [J].

Aumentado, J ;

Keller, MW ;

Martinis, JM ;

Devoret, MH .

PHYSICAL REVIEW LETTERS, 2004, 92 (06)

[2] One-dimensional heterostructures in semiconductor nanowhiskers [J].

Björk, MT ;

Ohlsson, BJ ;

Sass, T ;

Persson, AI ;

Thelander, C ;

Magnusson, MH ;

Deppert, K ;

Wallenberg, LR ;

Samuelson, L .

APPLIED PHYSICS LETTERS, 2002, 80 (06) :1058-1060

[3] An ultrasensitive radio-frequency single-electron transistor working up to 4.2 K [J].

Brenning, Henrik ;

Kafanov, Sergey ;

Duty, Tim ;

Kubatkin, Sergey ;

Delsing, Per .

JOURNAL OF APPLIED PHYSICS, 2006, 100 (11)

[4] Development and operation of the twin radio frequency single electron transistor for cross-correlated charge detection [J].

Buehler, TM ;

Reilly, DJ ;

Starrett, RP ;

Court, NA ;

Hamilton, AR ;

Dzurak, AS ;

Clark, RG .

JOURNAL OF APPLIED PHYSICS, 2004, 96 (08) :4508-4513

[5] Current measurement by real-time counting of single electrons [J].

Bylander, J ;

Duty, T ;

Delsing, P .

NATURE, 2005, 434 (7031) :361-364

[6]

COURT NA, 2007, ARXIV07102760

[7] Coherent dynamics of a Josephson charge qubit [J].

Duty, T ;

Gunnarsson, D ;

Bladh, K ;

Delsing, P .

PHYSICAL REVIEW B, 2004, 69 (14) :140503-1

[8] Bidirectional counting of single electrons [J].

Fujisawa, T ;

Hayashi, T ;

Tomita, R ;

Hirayama, Y .

SCIENCE, 2006, 312 (5780) :1634-1636

[9]

FUJISAWA T, 2004, APPL PHYS LETT, V77

[10]

GUILLAUME A, 2004, PHYS REV B, V12

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