Submonolayer Au on Si(111) phase diagram

نویسنده

  • Richard Plass
چکیده

Based on a review of the current literature, a surface phase diagram is proposed for the submonolayer Au on Sit 111 ) system. Kinetic considerations are reviewed and key surface phase diagram features such as the O < 0.4 ML metastable Sit 11 l )-1~/3 x ~/3 tR30 Au structure and the high temperature Si(11 l )-(V3 x ~/3tR3q'-Au to Sil 1 l 1 )-( 1 x 1 tAu second order phase transition are discussed. Experiments to verify certain portions of the phase diagram are proposed. ~) 1997 Elsevier Science B.V. Keyword,s: Adatoms; Compound formation; Diffusion and migration; Gold; Growth: Low index single crystal surfaces; Metal semiconductor interfaces; Metal-semiconductor nonmagnetic thin film structures; Models of surface kinetics; Non-equilibrium thermodynamics and statistical mechanics; Semiconducting surfaces; Silicides; Silicon; Single crystal surfaces; Surface chemical reaction: Surface defects; Surface diffusion: Surface energy: Surface relaxation and reconstruction; Surface thermodynamics (including phase transitionsl

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Surface phase diagrams for the Ag–Ge(111) and Au–Si(111) systems

Based on results from recent structural studies and an overview of the literature, we propose surface phase diagrams for the Au–Si(111) system in the supermonolayer regime and for the Ag–Ge(111) system in the submonolayer region. In addition, time–temperature–transformation (T–T–T) curves are proposed to represent the metastable structures present in surface phase systems. © 2000 Elsevier Scien...

متن کامل

OFFPRINT New evidence for the influence of step morphology on the formation of Au atomic chains on vicinal Si(111) surfaces

Gold atomic chain structures that grow on singular and vicinal Si(111) surfaces have attracted considerable interest as model systems for exploring quasi–one-dimensional metallic behaviour. The structure of the prototypical Si(111)-5× 2-Au system remains controversial, however. Reflection anisotropy spectroscopy provides new, independent evidence supporting a recently proposed three-Au-chain st...

متن کامل

Electronic structure of atomic chains on vicinal Si „ 111 ... - Au

Unusual electronic states are found for gold-induced chain and ladder structures on vicinal Si~111! surfaces, such as Si(111)532-Au and Si~557!-Au. As two-dimensional reference the Si(111)A33A3-Au surface is investigated. The highly stepped Si~557!-Au surface is metallic, despite an even electron count. That is explained by two half-filled, nearly degenerate bands. On the Si(111)532-Au surface ...

متن کامل

A new metastable epitaxial silicide: FeSi2/Si(111)

A metastable phase of FeSi 2 that is not present in the bulk phase diagram can be grown epitaxially on Si(111). Scanning tunneling microscope images reveal the surface reconstruction of this phase and allows one to model its crystallographic structure. It crystallizes with a cubic structure, probably a fluorite structure like CoSi 2 and NiSi2, lattice-matched to Si. The (111) surface has a 2 × ...

متن کامل

Evolution of surface morphology of vicinal Si(111) surfaces after aluminum deposition

We have studied changes in surface morphology of vicinal Si(111) surfaces with a miscut of 1.3° in the [2:11] direction after Al deposition at elevated temperatures. The clean surface phase separates into a (111)-oriented phase and a stepped phase. Submonolayer Al deposition at 650°C, the normal preparation temperature of the Al/Si(111)-(E3×E3)R30° structure, only induces minor changes in the s...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2002