Magneto-photoluminescence in high magnetic fields from InGaAs/GaAs quantum dots formed in tetrahedral-shaped recesses

K. Uchida, N. Miura, Y. Sakuma, Yuji Awano, T. Futatsugi, N. Yokoyama

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Novel GaAs/InGaAs/GaAs quantum dot (QD) structures in tetrahedral-shaped recesses formed on a (111)B GaAs substrate are fabricated using metalorganic vapor-phase epitaxy. Magneto-photoluminescence (PL) measurement are performed under pulsed high magnetic fields up to 40 T applied parallel and perpendicular to the growth direction of the QD. The diamagnetic shift of the PL originating from QD are observed. The amount of the shift is less than that of the PL from quantum wells for both configurations, indicating strong zero-dimensional quantum confinement.

Original languageEnglish
Pages (from-to)247-251
Number of pages5
JournalPhysica B: Condensed Matter
Volume249-251
Publication statusPublished - 1998 Jun 17
Externally publishedYes

Fingerprint

recesses
Semiconductor quantum dots
Photoluminescence
quantum dots
Magnetic fields
photoluminescence
magnetic fields
Metallorganic vapor phase epitaxy
Quantum confinement
shift
vapor phase epitaxy
Semiconductor quantum wells
quantum wells
Substrates
configurations
gallium arsenide

Keywords

  • InGaAs/GaAs
  • Magneto-photoluminescence
  • Quantum dots
  • Tetrahedral-shaped recess

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Magneto-photoluminescence in high magnetic fields from InGaAs/GaAs quantum dots formed in tetrahedral-shaped recesses. / Uchida, K.; Miura, N.; Sakuma, Y.; Awano, Yuji; Futatsugi, T.; Yokoyama, N.

In: Physica B: Condensed Matter, Vol. 249-251, 17.06.1998, p. 247-251.

Research output: Contribution to journalArticle

Uchida, K. ; Miura, N. ; Sakuma, Y. ; Awano, Yuji ; Futatsugi, T. ; Yokoyama, N. / Magneto-photoluminescence in high magnetic fields from InGaAs/GaAs quantum dots formed in tetrahedral-shaped recesses. In: Physica B: Condensed Matter. 1998 ; Vol. 249-251. pp. 247-251.
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AU - Futatsugi, T.

AU - Yokoyama, N.

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