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Pressure-Driven Chemical Disorder in Glassy As2S3 up to 14.7 GPa, Postdensification Effects, and Applications in Materials Design. / Soignard, Emmanuel; Tsiok, Oleg B.; Tverjanovich, Andrey S.; Bytchkov, Aleksei; Sokolov, Anton; Brazhkin, Vadim V.; Benmore, Chris J.; Bychkov, Eugene.

в: Journal of Physical Chemistry B, Том 124, № 2, 16.01.2020, стр. 430-442.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

Harvard

Soignard, E, Tsiok, OB, Tverjanovich, AS, Bytchkov, A, Sokolov, A, Brazhkin, VV, Benmore, CJ & Bychkov, E 2020, 'Pressure-Driven Chemical Disorder in Glassy As2S3 up to 14.7 GPa, Postdensification Effects, and Applications in Materials Design', Journal of Physical Chemistry B, Том. 124, № 2, стр. 430-442. https://doi.org/10.1021/acs.jpcb.9b10465

APA

Soignard, E., Tsiok, O. B., Tverjanovich, A. S., Bytchkov, A., Sokolov, A., Brazhkin, V. V., Benmore, C. J., & Bychkov, E. (2020). Pressure-Driven Chemical Disorder in Glassy As2S3 up to 14.7 GPa, Postdensification Effects, and Applications in Materials Design. Journal of Physical Chemistry B, 124(2), 430-442. https://doi.org/10.1021/acs.jpcb.9b10465

Vancouver

Soignard E, Tsiok OB, Tverjanovich AS, Bytchkov A, Sokolov A, Brazhkin VV и пр. Pressure-Driven Chemical Disorder in Glassy As2S3 up to 14.7 GPa, Postdensification Effects, and Applications in Materials Design. Journal of Physical Chemistry B. 2020 Янв. 16;124(2):430-442. https://doi.org/10.1021/acs.jpcb.9b10465

Author

Soignard, Emmanuel ; Tsiok, Oleg B. ; Tverjanovich, Andrey S. ; Bytchkov, Aleksei ; Sokolov, Anton ; Brazhkin, Vadim V. ; Benmore, Chris J. ; Bychkov, Eugene. / Pressure-Driven Chemical Disorder in Glassy As2S3 up to 14.7 GPa, Postdensification Effects, and Applications in Materials Design. в: Journal of Physical Chemistry B. 2020 ; Том 124, № 2. стр. 430-442.

BibTeX

@article{81836666afe64ff8b65ef2ca219ce200,
title = "Pressure-Driven Chemical Disorder in Glassy As2S3 up to 14.7 GPa, Postdensification Effects, and Applications in Materials Design",
abstract = "A small difference in energy between homopolar and heteropolar bonds and the glass-forming ability of pure chalcogens leads to unexpected trends in densification mechanisms of glassy chalcogenides compared to vitreous oxides. Using high-precision compressibility measurements and in situ high-energy X-ray diffraction up to 14.7 GPa, we show a new densification route in a canonical glass As2S3. After the first reversible elastic step with a maximum pressure of 1.3 GPa, characterized by a strong reduction of voids and cavities, a significant bonding or chemical disorder is developed under higher pressure, reaching a saturation of 30% in the population of As-As bonds above 8-9 GPa. The pressure-driven chemical disorder is accompanied by a remarkable structural relaxation and a strongly diminished optical gap and determines structural, vibrational, and optical properties under and after cold compression. The decompressed recovered glass conserves a dark color and exhibits two relaxation processes: (a) fast (a few days) and (b) slow (months/years at room temperature). The enhanced refractive index of the recovered glass is promising for optical applications with improved functionalities. A nearly permanent red shift in optical absorption after decompression can be used in high-impact-force optical sensors.",
author = "Emmanuel Soignard and Tsiok, {Oleg B.} and Tverjanovich, {Andrey S.} and Aleksei Bytchkov and Anton Sokolov and Brazhkin, {Vadim V.} and Benmore, {Chris J.} and Eugene Bychkov",
year = "2020",
month = jan,
day = "16",
doi = "10.1021/acs.jpcb.9b10465",
language = "English",
volume = "124",
pages = "430--442",
journal = "Journal of Physical Chemistry B",
issn = "1520-6106",
publisher = "American Chemical Society",
number = "2",

}

RIS

TY - JOUR

T1 - Pressure-Driven Chemical Disorder in Glassy As2S3 up to 14.7 GPa, Postdensification Effects, and Applications in Materials Design

AU - Soignard, Emmanuel

AU - Tsiok, Oleg B.

AU - Tverjanovich, Andrey S.

AU - Bytchkov, Aleksei

AU - Sokolov, Anton

AU - Brazhkin, Vadim V.

AU - Benmore, Chris J.

AU - Bychkov, Eugene

PY - 2020/1/16

Y1 - 2020/1/16

N2 - A small difference in energy between homopolar and heteropolar bonds and the glass-forming ability of pure chalcogens leads to unexpected trends in densification mechanisms of glassy chalcogenides compared to vitreous oxides. Using high-precision compressibility measurements and in situ high-energy X-ray diffraction up to 14.7 GPa, we show a new densification route in a canonical glass As2S3. After the first reversible elastic step with a maximum pressure of 1.3 GPa, characterized by a strong reduction of voids and cavities, a significant bonding or chemical disorder is developed under higher pressure, reaching a saturation of 30% in the population of As-As bonds above 8-9 GPa. The pressure-driven chemical disorder is accompanied by a remarkable structural relaxation and a strongly diminished optical gap and determines structural, vibrational, and optical properties under and after cold compression. The decompressed recovered glass conserves a dark color and exhibits two relaxation processes: (a) fast (a few days) and (b) slow (months/years at room temperature). The enhanced refractive index of the recovered glass is promising for optical applications with improved functionalities. A nearly permanent red shift in optical absorption after decompression can be used in high-impact-force optical sensors.

AB - A small difference in energy between homopolar and heteropolar bonds and the glass-forming ability of pure chalcogens leads to unexpected trends in densification mechanisms of glassy chalcogenides compared to vitreous oxides. Using high-precision compressibility measurements and in situ high-energy X-ray diffraction up to 14.7 GPa, we show a new densification route in a canonical glass As2S3. After the first reversible elastic step with a maximum pressure of 1.3 GPa, characterized by a strong reduction of voids and cavities, a significant bonding or chemical disorder is developed under higher pressure, reaching a saturation of 30% in the population of As-As bonds above 8-9 GPa. The pressure-driven chemical disorder is accompanied by a remarkable structural relaxation and a strongly diminished optical gap and determines structural, vibrational, and optical properties under and after cold compression. The decompressed recovered glass conserves a dark color and exhibits two relaxation processes: (a) fast (a few days) and (b) slow (months/years at room temperature). The enhanced refractive index of the recovered glass is promising for optical applications with improved functionalities. A nearly permanent red shift in optical absorption after decompression can be used in high-impact-force optical sensors.

UR - http://www.scopus.com/inward/record.url?scp=85077952954&partnerID=8YFLogxK

U2 - 10.1021/acs.jpcb.9b10465

DO - 10.1021/acs.jpcb.9b10465

M3 - Article

C2 - 31845807

AN - SCOPUS:85077952954

VL - 124

SP - 430

EP - 442

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

SN - 1520-6106

IS - 2

ER -

ID: 53679072