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Classification of a Novel Surface Phase Transition: The Knight‐Move Phase
Author(s) -
Andrews Alison,
Novenstern Matthew,
Roelofs Lyle D.
Publication year - 2010
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200900840
Subject(s) - phase transition , superconductivity , knight , phase (matter) , condensed matter physics , square (algebra) , surface (topology) , degree (music) , square root , order (exchange) , knight shift , chemical physics , materials science , crystallography , chemistry , nanotechnology , physics , mathematics , geometry , organic chemistry , astronomy , acoustics , finance , economics
The knight move or ${\left( {\sqrt 5 \times \sqrt 5 } \right)R27^ \circ }$ phase occurs on some surfaces relevant for growth of high‐ T c superconducting films and other technologically significant surfaces. The nature of the disordering transition of this phase has not been determined. We demonstrate via simulation that this disordering transition is first‐order (discontinuous), a result with important implications for preparation of the surfaces in question.