Multiple photon assisted tunneling between two coupled quantum dots

被引：20

作者：

Fujisawa, T ^{[1
]}

Tarucha, S ^{[1
]}

机构：

[1] NTT Corp, Basic Res Labs, Atsugi, Kanagawa 24301, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 1997年 / 36卷 / 6B期

关键词：

photon-assisted tunneling; quantum dot; coupled dot; microwave; Coulomb blockade;

D O I：

10.1143/JJAP.36.4000

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We describe photon-assisted tunneling (PAT) between discrete zero-dimensional (OD) levels in two weakly coupled quantum dots. Resonant tunneling current with multiple (up to three) photon absorption is observed when the two OD levels are separated by a multiple of the microwave photon energy. The PAT current shows a Bessel function dependence on the microwave power, which is in agreement with time-dependent tunneling theory The sharp PAT peaks can be well resolved even when the high microwave power increases electron temperature in the reservoirs.

引用

页码：4000 / 4003

页数：4

共 16 条

[1] Photon-assisted tunneling through a quantum dot at high microwave frequencies [J].

Blick, RH ;

Haug, RJ ;

vanderWeide, DW ;

vonKlitzing, K ;

Eberl, K .

APPLIED PHYSICS LETTERS, 1995, 67 (26) :3924-3926

[2] Single-electron tunneling through a double quantum dot: The artificial molecule [J].

Blick, RH ;

Haug, RJ ;

Weis, J ;

Pfannkuche, D ;

vonKlitzing, K ;

Eberl, K .

PHYSICAL REVIEW B, 1996, 53 (12) :7899-7902

[3]

Fujisawa T, 1996, APPL PHYS LETT, V68, P526, DOI 10.1063/1.116388

[4] Photon assisted tunnelling in single and coupled quantum dot systems [J].

Fujisawa, T ;

Tarucha, S .

SUPERLATTICES AND MICROSTRUCTURES, 1997, 21 (02) :247-254

[5] CHARGE-TRANSPORT AND PHOTON-ASSISTED TUNNELING IN THE NSN SINGLE-ELECTRON TRANSISTOR [J].

HERGENROTHER, JM ;

TUOMINEN, MT ;

LU, JG ;

RALPH, DC ;

TINKHAM, M .

PHYSICA B, 1994, 203 (3-4) :327-339

[6] DYNAMIC LOCALIZATION, ABSOLUTE NEGATIVE CONDUCTANCE, AND STIMULATED, MULTIPHOTON EMISSION IN SEQUENTIAL RESONANT-TUNNELING SEMICONDUCTOR SUPERLATTICES [J].

KEAY, BJ ;

ZEUNER, S ;

ALLEN, SJ ;

MARANOWSKI, KD ;

GOSSARD, AC ;

BHATTACHARYA, U ;

RODWELL, MJW .

PHYSICAL REVIEW LETTERS, 1995, 75 (22) :4102-4105

[7] OBSERVATION OF PHOTON-ASSISTED TUNNELING THROUGH A QUANTUM-DOT [J].

KOUWENHOVEN, LP ;

JAUHAR, S ;

ORENSTEIN, J ;

MCEUEN, PL ;

NAGAMUNE, Y ;

MOTOHISA, I ;

SAKAKI, H .

PHYSICAL REVIEW LETTERS, 1994, 73 (25) :3443-3446

[8]

OOSTERKAMP TH, 1996, IN PRESS SEMICOND SC

[9] SINGLE-ELECTRON PUMP BASED ON CHARGING EFFECTS [J].

POTHIER, H ;

LAFARGE, P ;

URBINA, C ;

ESTEVE, D ;

DEVORET, MH .

EUROPHYSICS LETTERS, 1992, 17 (03) :249-254

[10] Resonant photon-assisted tunneling through a double quantum dot: An electron pump from spatial rabi oscillations [J].

Stafford, CA ;

Wingreen, NS .

PHYSICAL REVIEW LETTERS, 1996, 76 (11) :1916-1919

← 1 2 →