Single-electron charging in double and triple quantum dots with tunable coupling

F. R. Waugh; M. J. Berry; D. J. Mar; R. M. Westervelt; K. L. Campman; A. C. Gossard

doi:10.1103/PhysRevLett.75.705

Single-electron charging in double and triple quantum dots with tunable coupling

F. R. Waugh, M. J. Berry, D. J. Mar, R. M. Westervelt, K. L. Campman, A. C. Gossard

Research output: Contribution to journal › Article › peer-review

474 Scopus citations

Abstract

We report low-temperature tunneling measurements at zero magnetic field through double and triple quantum dots with adjustable interdot coupling, fabricated in a GaAs/AlGaAs heterostructure. As the coupling is increased, Coulomb blockade conductance peaks split into two (double dot) or three (triple dot) peaks each. The splitting tracks closely the measured tunnel conductance and experimentally determines the total interaction energy. Coupled double and triple dots with different gate capacitance show quasiperiodic beating.

Original language	English (US)
Pages (from-to)	705-708
Number of pages	4
Journal	Physical review letters
Volume	75
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.75.705
State	Published - 1995
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.75.705

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abstract = "We report low-temperature tunneling measurements at zero magnetic field through double and triple quantum dots with adjustable interdot coupling, fabricated in a GaAs/AlGaAs heterostructure. As the coupling is increased, Coulomb blockade conductance peaks split into two (double dot) or three (triple dot) peaks each. The splitting tracks closely the measured tunnel conductance and experimentally determines the total interaction energy. Coupled double and triple dots with different gate capacitance show quasiperiodic beating.",

author = "Waugh, {F. R.} and Berry, {M. J.} and Mar, {D. J.} and Westervelt, {R. M.} and Campman, {K. L.} and Gossard, {A. C.}",

year = "1995",

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T1 - Single-electron charging in double and triple quantum dots with tunable coupling

AU - Waugh, F. R.

AU - Berry, M. J.

AU - Mar, D. J.

AU - Westervelt, R. M.

AU - Campman, K. L.

AU - Gossard, A. C.

PY - 1995

Y1 - 1995

N2 - We report low-temperature tunneling measurements at zero magnetic field through double and triple quantum dots with adjustable interdot coupling, fabricated in a GaAs/AlGaAs heterostructure. As the coupling is increased, Coulomb blockade conductance peaks split into two (double dot) or three (triple dot) peaks each. The splitting tracks closely the measured tunnel conductance and experimentally determines the total interaction energy. Coupled double and triple dots with different gate capacitance show quasiperiodic beating.

AB - We report low-temperature tunneling measurements at zero magnetic field through double and triple quantum dots with adjustable interdot coupling, fabricated in a GaAs/AlGaAs heterostructure. As the coupling is increased, Coulomb blockade conductance peaks split into two (double dot) or three (triple dot) peaks each. The splitting tracks closely the measured tunnel conductance and experimentally determines the total interaction energy. Coupled double and triple dots with different gate capacitance show quasiperiodic beating.

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U2 - 10.1103/PhysRevLett.75.705

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JO - Physical review letters

JF - Physical review letters

IS - 4

ER -

Single-electron charging in double and triple quantum dots with tunable coupling

Abstract

All Science Journal Classification (ASJC) codes

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