Order within disorder

  title={Order within disorder},
  author={Philip Stephen Salmon},
  journal={Nature Materials},
  • P. Salmon
  • Published 1 October 2002
  • Materials Science
  • Nature Materials
The structure of glass is not as untidy as one would think. It has some degree of order intermediate between a liquid and a crystal. A new method allows control of this intermediate range order and improves our understanding of glass structures. 
Structure of glasses and melts
Wilding, M. C., Benmore, C. J. (2006). Structure and Glasses and Melts. reviews in Mineralogy and Geochemistry, 63 (1), 275-311 RAE2008
Identifying and characterising the different structural length scales in liquids and glasses: an experimental approach.
The structure of several network-forming liquids and glasses is considered, where a focus is placed on the detailed information made available by using the method of neutron diffraction with isotope substitution (NDIS) to measure the detailed structure of aerodynamically-levitated laser-heated droplets of "fragile" glass-forming liquid oxides and hydrogen-bonded network of water.
Impact of pressure on the structure of glass and its material properties
High pressures have a significant impact on the structure-related properties of glass, and are encountered in scenarios that range from fracture mechanics, where stress in the gigapascal regime is
Topological Model for the Viscosity of Multicomponent Glass-Forming Liquids
Topological constraint theory holds the key to understanding the temperature and composition dependence of the dynamics of glass-forming liquids. Unfortunately, existing analytical models currently
The Atomic-Scale Structure of Network Glass-Forming Materials
A prerequisite for understanding the physico-chemical properties of network glass-forming materials is knowledge about their atomic-scale structure. The desired information is not, however, easy to
Decay of the pair correlations and small-angle scattering for binary liquids and glasses
The origin of extended-range ordering in binary liquids and glasses is investigated. The starting point is a simple model pair potential which includes both Coulomb and dispersion forces. For this
Relationship between diffraction peak, network topology, and amorphous-forming ability in silicon and silica
It is concluded that the tetrahedral corner-sharing network of AX2, in which A is a fourfold cation and X is a twofold anion, is an important motif for the amorphous-forming ability that can rule out a-Si as anAmorphous former.
Viscosity of glass‐forming systems
As one of the most important properties of glass-forming liquids, viscosity has drawn significant attention in both glass manufacturing and fundamental research. We review the recent scientific
Multi-scale order in amorphous transparent oxide thin films
Nominally “diffraction amorphous” materials represent a pervasive challenge in establishing classical structure-property relationships. This stems from the difficulty in defining the structure of
Flow units as dynamic defects in metallic glassy materials
It is shown that flow units that are similar to structural defects such as dislocations are crucial in the optimization and design of metallic glassy materials via the thermal, mechanical and high-pressure tailoring of these units.


Medium-range structural order in covalent amorphous solids
Despite their lack of long-range translational and orientational order, covalent amorphous solids can exhibit structural order over both short and medium length scales, the latter reaching to 20 Å or
Defects in a disordered world: the structure of glassy GeSe2
The full set of partial structure factors for the prototypical network glass GeSe2 was measured using the method of isotopic substitution in neutron diffraction to measure the intrinsic chemical order of the glass.
Real space manifestation of the first sharp diffraction peak in the structure factor of liquid and glassy materials
  • P. Salmon
  • Materials Science
    Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences
  • 1994
The problem of those discernible features of the intermediate range order (IRO) which can be attributed to the first sharp diffraction peak (FSDP) observed in the structure factor of many liquid and
Random Packing of Structural Units and the First Sharp Diffraction Peak in Glasses
Diffraction studies of glasses often yield a structure factor S(Q) with a pronounced first sharp diffraction peak (FSDP) at low Q values in the vicinity of Q ≅ 1.0-1.5 A-1. This feature, while often
Metal Halide Analogues of Chalcogenides: A Building Block Approach to the Rational Synthesis of Solid-State Materials
Principles of solid-state structure and bonding that relate metal-halide and metal-chalcogenide materials are described through a comparison of binary AXn salts. Structural variation is rationalized
Designing intermediate-range order in amorphous materials
Using crystalline models, principles of crystal engineering are employed to design specific patterns of intermediate-range order within amorphous zinc-chloride networks to provide the structure/property relationships necessary to tailor specific optical, electronic and mechanical properties.