Critical behavior at chiral melting : disordering of the Si(113)-(3×1) reconstruction

Results of an x-ray-scattering study of the (3[times]1)-to-disordered phase transformation of the Si(113) surface are reported. A continuous commensurate-solid to incommensurate-fluid transformation occurs at [ital T][sub [ital c]]=959 K. A new two-dimensional universality class is identified and ch...

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Bibliographic Details
Published in:Physical review letters 1993-08, Vol.71 (5), p.750-753
Main Authors: ABERNATHY, D. L, BIRGENEAU, R. J, BLUM, K. I, MOCHRIE, S. G. J
Format: Article
Language:English
Subjects:
360602 - Other Materials- Structure & Phase Studies
665100 - Nuclear Techniques in Condensed Matter Physics - (1992-)
BREMSSTRAHLUNG
COHERENT SCATTERING
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Condensed matter: structure, mechanical and thermal properties
DIFFRACTION
ELECTROMAGNETIC RADIATION
ELEMENTS
Exact sciences and technology
MATERIALS SCIENCE
ORDER-DISORDER TRANSFORMATIONS
PHASE TRANSFORMATIONS
Physics
RADIATIONS
SCALING LAWS
SCATTERING
SEMIMETALS
SILICON
Solid surfaces and solid-solid interfaces
SURFACE PROPERTIES
Surface structure and topography
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
SYNCHROTRON RADIATION
TEMPERATURE DEPENDENCE
X-RAY DIFFRACTION
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Summary:Results of an x-ray-scattering study of the (3[times]1)-to-disordered phase transformation of the Si(113) surface are reported. A continuous commensurate-solid to incommensurate-fluid transformation occurs at [ital T][sub [ital c]]=959 K. A new two-dimensional universality class is identified and characterized. Specifically, we find that the correlation lengths in the disordered phase scale anisotropically, and that the product of the incommensurability and the correlation length along the incommensurate direction is constant.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.71.750