Hysteresis in phase transitions at clean and Au-covered Si(111) surfaces

Shuji Hasegawa, Yasuyoshi Nagai, Toshio Oonishi, Shozo Ino

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


By measuring the temperature dependence of the superlattice-spot intensity in reflection high-energy electron diffraction from a clean Si(111) surface during the phase transition between 7×7 and 1×1 structures, a hysteresis was found with a temperature difference of 5°C between heating and cooling processes. We conclude that a first-order phase transition is present. Hysteresis was barely observed for the (5×2 or 3 × 3) -1×1 phase transitions of Au-induced superstructures.

Original languageEnglish
Pages (from-to)9903-9906
Number of pages4
JournalPhysical Review B
Issue number15
Publication statusPublished - 1993
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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