Coexistence of (2 x 1) and i(4 x 2) phases on Ge(001)

Zandvliet H., VAN GASTEL R., Gurlu O., POELSEMA B.

PHYSICS LETTERS A, cilt.326, ss.457-461, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 326
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1016/j.physleta.2004.04.056
  • Dergi Adı: PHYSICS LETTERS A
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.457-461
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

We found that the c(4 x 2) to (2 x 1) phase transition on Ge(001) occurs via an intermediate temperature range where both phases coexist in a well-ordered, one-dimensional domain pattern. A simple model that takes into account collective dynamic buckling of the surface dimers, strain relaxation energy and domain wall formation energy is presented. (C) 2004 Elsevier B.V. All rights reserved.