Spin relaxation in InGaN quantum disks in GaN nanowires

Animesh Banerjee, Dog, Junseok Heo, Aurelien Manchon, Wei Guo, Pallab K. Bhattacharya

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

The spin relaxation time of photoinduced conduction electrons has been measured in InGaN quantum disks in GaN nanowires as a function of temperature and In composition in the disks. The relaxation times are of the order of ∼100 ps at 300 K and are weakly dependent on temperature. Theoretical considerations show that the Elliott-Yafet scattering mechanism is essentially absent in these materials and the results are interpreted in terms of the D'yakonov-Perel' relaxation mechanism in the presence of Rashba spin-orbit coupling of the wurtzite structure. The calculated spin relaxation times are in good agreement with the measured values. © 2011 American Chemical Society.
Original languageEnglish (US)
Pages (from-to)5396-5400
Number of pages5
JournalNano Letters
Volume11
Issue number12
DOIs
StatePublished - Dec 14 2011

ASJC Scopus subject areas

  • Bioengineering
  • Materials Science(all)
  • Chemistry(all)
  • Mechanical Engineering
  • Condensed Matter Physics

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