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Tunable effective g factor in InAs nanowire quantum dots

  • Mikael Björk
  • Andreas Fuhrer
  • Adam Hansen
  • Marcus Larsson
  • Linus Fröberg
  • Lars Samuelson
Publiceringsår: 2005
Språk: Engelska
Publikation/Tidskrift/Serie: Physical Review B
Volym: 72
Nummer: 20
Dokumenttyp: Artikel
Förlag: The American Physical Society


We report tunneling spectroscopy measurements of the Zeeman spin splitting in InAs few-electron quantum dots. The dots are formed between two InP barriers in InAs nanowires with a wurtzite crystal structure grown using chemical beam epitaxy. The values of the electron g factors of the first few electrons entering the dot are found to strongly depend on dot size. They range from close to the InAs bulk value in large dots vertical bar g(*)vertical bar=13 down to vertical bar g(*)vertical bar=2.3 for the smallest dots.



  • Physics and Astronomy


  • ISSN: 1098-0121

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