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Chemical Bonding, Internal Surfaces, and the Topology of Non‐Crystalline Solids
Author(s) -
Phillips J. C.
Publication year - 1980
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221010204
Subject(s) - randomness , materials science , range (aeronautics) , covalent bond , semiconductor , chemical bond , order (exchange) , topology (electrical circuits) , chemical physics , crystallography , composite material , chemistry , mathematics , optoelectronics , combinatorics , organic chemistry , statistics , finance , economics
Abstract The rarity of glass‐forming materials requires the existence of topologically specific principles (over and above the randomness implied by the absence of long‐range order) which optimize the glass‐forming tendency (gft). For covalent glassy semiconductors an algebraic condition predicts correctly the composition dependence of the gft. Quite generally substantial medium‐range order associated with quasi‐regular internal surfaces can be found in glasses at distances as large as 1000 Å in suitably selected thin films.