Improved recrystallization behavior by additional irradiation of Mn+-implanted GaAs studied by Raman scattering

Jiqing Wang, Qiang Zhao, Huaizhong Xing, Jianguo Yu, Huibing Mao, Ye Shen

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Raman spectroscopy was employed to study the evolution of host lattice recrystallization in Mn+-implanted GaAs both prior to and following irradiation with Ga, As and H ions. The additional irradiation stimulates the regrowth of the host lattice after a thermal anneal of 920 °C. A competitive process between post-implantation-induced damage and recovery in the crystallization process of amorphous GaAs was observed. At a As+ fluence level exceeding 8 × 1015 cm-2, the self-implantation-enhanced recovery of the crystal dominates the regrowth stage. The vacancy supersaturation produced during additional irradiation is mainly responsible for the enhancement of recrystallization in Mn+-implanted GaAs.

Original languageEnglish
Pages (from-to)263-266
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume252
Issue number2
DOIs
StatePublished - Nov 2006

Keywords

  • GaAs
  • Ion implantation
  • Raman spectroscopy

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