Medium-range structural order in covalent amorphous solids

@article{Elliott1991MediumrangeSO,
  title={Medium-range structural order in covalent amorphous solids},
  author={Stephen R. Elliott},
  journal={Nature},
  year={1991},
  volume={354},
  pages={445-452}
}
  • S. Elliott
  • Published 12 December 1991
  • Materials Science
  • Nature
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 so. Medium-range order is difficult to measure experimentally and to interpret unambiguously, but a variety of techniques have allowed several types of characteristic structural ordering to be identified and their origin elucidated. 
View on Springer
485 Citations
Highly Influential Citations
9
Background Citations
47
Methods Citations
8
Results Citations
1

485 Citations

Citation Type

Citation Type

A medium-range structure motif linking amorphous and crystalline states
TLDR
The experimental observations provide evidence of a structural link between the amorphous and crystalline phases in a Pd-Ni-P alloy at the medium-range length scale and suggest that it is the connectivity of the 6M-TTP clusters that distinguishes the crystalline and amorphou phases.
The Structure of Amorphous Materials
Amorphous materials are condensed phases which do not possess the long-range translational (or orientational) order — or periodicity — characteristic of a crystal. The terms amorphous and…
Beyond short-range order length scales in disordered materials: first principles modeling of SiSe2
Designing intermediate-range order in amorphous materials
TLDR
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.
Order from Disorder
TLDR
It is shown that C60 molecules from the crystalline solvated fullerene phase C60*m-xylene undergo an order-to-disorder transition under compression at ≈35 GPa but keep their translational symmetry.
Low-Frequency Dynamics and Its Correlation of Nanoscale Structures in Amorphous Solids
Unlike the crystalline solids, the atomic arrangements in amorphous solids lack long-range translational and orientational order. Despite intense research activity on their structures, the details of…
Medium-range order in a simple monatomic liquid
First principles modeling of intermediate range order in amorphous SiSe2
Medium-range structural order in liquid Ni20Al80 alloy: Experimental and molecular dynamics studies
Extended-range order, interstitial voids and the first sharp diffraction peak of network glasses
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 79 REFERENCES
Topology of covalent non-crystalline solids II: Medium-range order in chalcogenide alloys and ASi(Ge)
Specification of medium range order in amorphous materials
Structure of covalently bonded glass-forming melts: A full partial-structure-factor analysis of liquid GeSe2.
The first full partial-structure-factor analysis of molten GeSe 2 is made using the method of isotopic substitution in neutron diffraction. It is shown that the melt comprises roughlyequal numbers of…
Atomic correlations and intermediate-range order in molten and amorphous GeSe2.
Interatomic potentials consisting of two-body and three-body covalent forces are proposed for GeSe/sub 2/. Using these in molecular-dynamics simulations, the nature of intermediate-range order is…
Medium-range order in the cation distribution of a calcium silicate glass
Silicate glasses have conventionally been regarded as silicate frameworks in which cations are distributed at random. Neutron scattering from isotopically substituted samples allows correlations…
Origin of the first sharp diffraction peak in the structure factor of covalent glasses.
  • Elliott
  • Physics
    Physical review letters
  • 1991
TLDR
Calculated FSDP positions of some covalent glasses agree well with experiment, and the anomalous temperature and pressure dependences of the FSDP can be understood in terms of density effects.
Structural Characterization of Non‐Oxide Chalcogenide Glasses using Solid State NMR
In spite of the long-standing importance of non-oxide chalcogenide glasses in infrared optics and semiconductor technology, concepts describing the structural principles governing glass formation in…
Effect of preparation method on the structure of amorphous solids in the system AsS
Mössbauer Spectroscopy—A Rewarding Probe of Morphological Structure of Semiconducting Glasses
It has been fashionable to discuss the structure of stoichiometric melt-quenched network glasses in terms of chemically-ordered continuous random networks (CRN) since Zachariasen’s pioneering work on…
The structure of silicon-selenium glasses: I. Short-range order☆
...
1
2
3
4
5
...