Two level mixing effects probed by resonant tunnelling through vertically coupled quantum dots

S. Amana; C. Payette; J. A. Gupta; T. Hatano; K. Ono; T. Kodera; Y. Tokura; D. G. Austing; S. Tarucha

doi:10.1002/pssc.200776573

Two level mixing effects probed by resonant tunnelling through vertically coupled quantum dots

S. Amana, C. Payette, J. A. Gupta, T. Hatano, K. Ono, T. Kodera, Y. Tokura, D. G. Austing, S. Tarucha

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

We study the magnetic (B-) field evolution of single-particle levels in one dot by observing resonant tunnelling (RT) between two weakly coupled vertical quantum dots in series. The B-field dependence of the RT current peaks in the spectrum follows closely that of the states of a circular two dimensional harmonic potential. Several prominent two-level anti-crossing features are revealed. The RT current changes dramatically on passing through the anti-crossing point. This can be assigned to the nature of inter-dot RT though intra-dot level-mixed states.

Original language	English
Pages (from-to)	174-177
Number of pages	4
Journal	Physica Status Solidi (C) Current Topics in Solid State Physics
Volume	5
Issue number	1
DOIs	https://doi.org/10.1002/pssc.200776573
Publication status	Published - 2008
Externally published	Yes
Event	15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors, HCIS15 - Tokyo, Japan Duration: 2007 Jul 23 → 2007 Jul 27

ASJC Scopus subject areas

Condensed Matter Physics

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title = "Two level mixing effects probed by resonant tunnelling through vertically coupled quantum dots",

abstract = "We study the magnetic (B-) field evolution of single-particle levels in one dot by observing resonant tunnelling (RT) between two weakly coupled vertical quantum dots in series. The B-field dependence of the RT current peaks in the spectrum follows closely that of the states of a circular two dimensional harmonic potential. Several prominent two-level anti-crossing features are revealed. The RT current changes dramatically on passing through the anti-crossing point. This can be assigned to the nature of inter-dot RT though intra-dot level-mixed states.",

author = "S. Amana and C. Payette and Gupta, {J. A.} and T. Hatano and K. Ono and T. Kodera and Y. Tokura and Austing, {D. G.} and S. Tarucha",

year = "2008",

doi = "10.1002/pssc.200776573",

language = "English",

volume = "5",

pages = "174--177",

journal = "Physica Status Solidi C: Conferences",

issn = "1862-6351",

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number = "1",

note = "15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors, HCIS15 ; Conference date: 23-07-2007 Through 27-07-2007",

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TY - JOUR

T1 - Two level mixing effects probed by resonant tunnelling through vertically coupled quantum dots

AU - Amana, S.

AU - Payette, C.

AU - Gupta, J. A.

AU - Hatano, T.

AU - Ono, K.

AU - Kodera, T.

AU - Tokura, Y.

AU - Austing, D. G.

AU - Tarucha, S.

PY - 2008

Y1 - 2008

N2 - We study the magnetic (B-) field evolution of single-particle levels in one dot by observing resonant tunnelling (RT) between two weakly coupled vertical quantum dots in series. The B-field dependence of the RT current peaks in the spectrum follows closely that of the states of a circular two dimensional harmonic potential. Several prominent two-level anti-crossing features are revealed. The RT current changes dramatically on passing through the anti-crossing point. This can be assigned to the nature of inter-dot RT though intra-dot level-mixed states.

AB - We study the magnetic (B-) field evolution of single-particle levels in one dot by observing resonant tunnelling (RT) between two weakly coupled vertical quantum dots in series. The B-field dependence of the RT current peaks in the spectrum follows closely that of the states of a circular two dimensional harmonic potential. Several prominent two-level anti-crossing features are revealed. The RT current changes dramatically on passing through the anti-crossing point. This can be assigned to the nature of inter-dot RT though intra-dot level-mixed states.

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U2 - 10.1002/pssc.200776573

DO - 10.1002/pssc.200776573

M3 - Conference article

AN - SCOPUS:45749086438

VL - 5

SP - 174

EP - 177

JO - Physica Status Solidi C: Conferences

JF - Physica Status Solidi C: Conferences

SN - 1862-6351

IS - 1

T2 - 15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors, HCIS15

Y2 - 23 July 2007 through 27 July 2007

ER -

Two level mixing effects probed by resonant tunnelling through vertically coupled quantum dots

Abstract

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