Time-dependent single electron tunneling through a shuttling nanoisland

被引：9

作者：

Cohen, G. ^{[1
]}

Fleurov, V. ^{[1
]}

Kikoin, K. ^{[1
]}

机构：

[1] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 24期

关键词：

Coulomb blockade; quantum dots; spin polarised transport; transparency; tunnelling; QUANTUM-DOT; KONDO; SEMICONDUCTORS; TRANSITION; TRANSPORT; STATES;

D O I：

10.1103/PhysRevB.79.245307

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We offer a general approach to the calculation of single electron tunneling spectra and conductance of a shuttle oscillating between two half-metallic leads with fully spin-polarized carriers. In this case the spin-flip processes are completely suppressed and the problem may be solved by means of canonical transformation, where the adiabatic component of the tunnel transparency is found exactly, whereas the nonadiabatic corrections can be taken into account perturbatively. Time-dependent corrections to the tunnel conductance of moving shuttle become noticeable at finite bias in the vicinity of the even/odd occupation boundary at the Coulomb diamond diagram.

引用

页数：11

共 34 条

[1] Electron transport through a molecular conductor with center-of-mass motion -: art. no. 256807 [J].

Al-Hassanieh, KA ;

Büsser, CA ;

Martins, GB ;

Dagotto, E .

PHYSICAL REVIEW LETTERS, 2005, 95 (25)

[2] FLOQUET THEORY AND APPLICATIONS [J].

BARONE, SR ;

NARCOWICH, MA ;

NARCOWICH, FJ .

PHYSICAL REVIEW A, 1977, 15 (03) :1109-1125

[3] Shape-dependent thermal switching behavior of superparamagnetic nanoislands [J].

Bode, M ;

Pietzsch, O ;

Kubetzka, A ;

Wiesendanger, R .

PHYSICAL REVIEW LETTERS, 2004, 92 (06)

[4] Coherent electronic transport and Kondo resonance in magnetic nanostructures [J].

Bulka, BR ;

Lipinski, S .

PHYSICAL REVIEW B, 2003, 67 (02)

[5] Kondo effect in a quantum dot coupled to ferromagnetic leads:: A numerical renormalization group analysis -: art. no. 056601 [J].

Choi, MS ;

Sánchez, D ;

López, R .

PHYSICAL REVIEW LETTERS, 2004, 92 (05) :4

[6]

Glazman LI, 2005, LES HOUCH S, V81, P427

[7]

GLAZMAN LI, 1988, JETP LETT+, V47, P452

[8] Kondo resonance in an AC driven quantum dot subjected to finite bias [J].

Goker, A. .

SOLID STATE COMMUNICATIONS, 2008, 148 (5-6) :230-233

[9] Nonlinear response of a Kondo system: Direct and alternating tunneling currents [J].

Goldin, Y ;

Avishai, Y .

PHYSICAL REVIEW LETTERS, 1998, 81 (24) :5394-5397

[10] Shuttle mechanism for charge transfer in Coulomb blockade nanostructures [J].

Gorelik, LY ;

Isacsson, A ;

Voinova, MV ;

Kasemo, B ;

Shekhter, RI ;

Jonson, M .

PHYSICAL REVIEW LETTERS, 1998, 80 (20) :4526-4529

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