Investigation of electron wave function hybridization in Ga0.25In0.75As/InP arrays

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Abstract

We present a measurement technique for quantifying coupling between semiconductor quantum dots in an array. This technique employs magnetoconductance fluctuations to probe the decrease in the average spacing of the quantum energy levels as the electron wave functions in the dots undergo hybridization. Focusing on Ga0.25In0.75As dots, we investigate hybridization as the coupling strength is varied and the number of dots in the array is increased. Our technique reveals a significant drop in the average energy level spacing for multiple dot arrays, which is strong evidence for wave function hybridization.

Detaljer

Författare
  • T. P. Martin
  • M. S. Fairbanks
  • B. C. Scannell
  • C. A. Marlow
  • Heiner Linke
  • R. P. Taylor
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Den kondenserade materiens fysik

Nyckelord

Originalspråkengelska
Artikelnummer182105
TidskriftApplied Physics Letters
Volym95
Utgåva nummer18
StatusPublished - 2009
PublikationskategoriForskning
Peer review utfördJa