Surface reconstructions of zincblende MgS (100) observed by using RHEED

Richard T. Moug, Christine Bradford, Kevin A. Prior

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

RHEED patterns from zincblende MgS (100) surfaces have been observed during growth, during annealing, and both before and after irradiation of the surface with an Mg flux. The c(2 × 2) pattern is observed during growth and is stable during annealing, but a Mg flux removes it permanently. Exposing the surface to Mg at temperatures above 310 °C creates a rough 1×1 surface. Below that temperature, the surface is flatter, and a 4 × 1 reconstruction is observed with Mg irradiation, becoming a 2 × 1 reconstruction after annealing in vacuo. These results are compatable with a c(2 × 2) surface being formed from a ZnMgS alloy, which converts to a pure MgS 4 × 1 surface on Zn irradiation. The conversion from a 4 × 1 to a 2 × 1 surface results from the evaporation of excess Mg.

Original languageEnglish
Pages (from-to)2996-2999
Number of pages4
JournalJournal of the Korean Physical Society
Volume53
Issue number5 PART 2
Publication statusPublished - Nov 2008

Keywords

  • MgS
  • RHEED
  • Surface reconstruction

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    Moug, R. T., Bradford, C., & Prior, K. A. (2008). Surface reconstructions of zincblende MgS (100) observed by using RHEED. Journal of the Korean Physical Society, 53(5 PART 2), 2996-2999.