Intermediate-range order in permanently densified vitreous SiO2: A neutron-diffraction and molecular-dynamics study

S. Susman; K. J. Volin; D. L. Price; M. Grimsditch; J. P. Rino; R. K. Kalia; P. Vashishta; G. Gwanmesia; Y. Wang; R. C. Liebermann

doi:10.1103/PhysRevB.43.1194

Intermediate-range order in permanently densified vitreous SiO2: A neutron-diffraction and molecular-dynamics study

S. Susman
, K. J. Volin
, D. L. Price
, M. Grimsditch
, J. P. Rino
, R. K. Kalia
, P. Vashishta
, G. Gwanmesia
, Y. Wang
, R. C. Liebermann

Research output: Contribution to journal › Article › peer-review

285 Scopus citations

Abstract

The structure of pressure-densified vitreous SiO2 has been investigated using neutron-diffraction and molecular-dynamics techniques. After compression to 16 GPa at room temperature, recovered samples have densities 20% higher than normal vitreous SiO2 and show substantial changes in the first sharp diffraction peak (FSDP): an indication of modification in the intermediate-range order. The changes in the FSDP are due to increased frustration caused by the decrease in the Si-O-Si bond angle and a shift in the Si-Si and O-O correlations in the range of 48 toward lower distances. © 1991 The American Physical Society.

Original language	English
Pages (from-to)	1194-1197
Number of pages	4
Journal	Physical Review B
Volume	43
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.43.1194
State	Published - Jan 1 1991
Externally published	Yes

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@article{1260746c23c4480c979302cfb7ade516,

title = "Intermediate-range order in permanently densified vitreous SiO2: A neutron-diffraction and molecular-dynamics study",

abstract = "The structure of pressure-densified vitreous SiO2 has been investigated using neutron-diffraction and molecular-dynamics techniques. After compression to 16 GPa at room temperature, recovered samples have densities 20\% higher than normal vitreous SiO2 and show substantial changes in the first sharp diffraction peak (FSDP): an indication of modification in the intermediate-range order. The changes in the FSDP are due to increased frustration caused by the decrease in the Si-O-Si bond angle and a shift in the Si-Si and O-O correlations in the range of 48 toward lower distances. {\textcopyright} 1991 The American Physical Society.",

author = "S. Susman and Volin, \{K. J.\} and Price, \{D. L.\} and M. Grimsditch and Rino, \{J. P.\} and Kalia, \{R. K.\} and P. Vashishta and G. Gwanmesia and Y. Wang and Liebermann, \{R. C.\}",

year = "1991",

month = jan,

day = "1",

doi = "10.1103/PhysRevB.43.1194",

language = "English",

volume = "43",

pages = "1194--1197",

journal = "Physical Review B",

issn = "0163-1829",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Intermediate-range order in permanently densified vitreous SiO2: A neutron-diffraction and molecular-dynamics study

AU - Susman, S.

AU - Volin, K. J.

AU - Price, D. L.

AU - Grimsditch, M.

AU - Rino, J. P.

AU - Kalia, R. K.

AU - Vashishta, P.

AU - Gwanmesia, G.

AU - Wang, Y.

AU - Liebermann, R. C.

PY - 1991/1/1

Y1 - 1991/1/1

N2 - The structure of pressure-densified vitreous SiO2 has been investigated using neutron-diffraction and molecular-dynamics techniques. After compression to 16 GPa at room temperature, recovered samples have densities 20% higher than normal vitreous SiO2 and show substantial changes in the first sharp diffraction peak (FSDP): an indication of modification in the intermediate-range order. The changes in the FSDP are due to increased frustration caused by the decrease in the Si-O-Si bond angle and a shift in the Si-Si and O-O correlations in the range of 48 toward lower distances. © 1991 The American Physical Society.

AB - The structure of pressure-densified vitreous SiO2 has been investigated using neutron-diffraction and molecular-dynamics techniques. After compression to 16 GPa at room temperature, recovered samples have densities 20% higher than normal vitreous SiO2 and show substantial changes in the first sharp diffraction peak (FSDP): an indication of modification in the intermediate-range order. The changes in the FSDP are due to increased frustration caused by the decrease in the Si-O-Si bond angle and a shift in the Si-Si and O-O correlations in the range of 48 toward lower distances. © 1991 The American Physical Society.

UR - https://www.scopus.com/pages/publications/4243670180

U2 - 10.1103/PhysRevB.43.1194

DO - 10.1103/PhysRevB.43.1194

M3 - Article

SN - 0163-1829

VL - 43

SP - 1194

EP - 1197

JO - Physical Review B

JF - Physical Review B

IS - 1

ER -

Intermediate-range order in permanently densified vitreous SiO2: A neutron-diffraction and molecular-dynamics study

Abstract

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