The role of local-geometrical-orders on the growth of dynamic-length-scales in glass-forming liquids

The precise nature of complex structural relaxation as well as an explanation for the precipitous growth of relaxation time in cooling glass-forming liquids are essential to the understanding of vitrification of liquids. The dramatic increase of relaxation time is believed to be caused by the growth...

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Autores principales: Wong, Kaikin, Krishnan, Rithin P., Chen, Changjiu, Du, Qing, Yu, Dehong, Lu, Zhaoping, Samwer, K., Chathoth, Suresh M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5792601/
https://www.ncbi.nlm.nih.gov/pubmed/29386575
http://dx.doi.org/10.1038/s41598-018-20470-6
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author Wong, Kaikin
Krishnan, Rithin P.
Chen, Changjiu
Du, Qing
Yu, Dehong
Lu, Zhaoping
Samwer, K.
Chathoth, Suresh M.
author_facet Wong, Kaikin
Krishnan, Rithin P.
Chen, Changjiu
Du, Qing
Yu, Dehong
Lu, Zhaoping
Samwer, K.
Chathoth, Suresh M.
author_sort Wong, Kaikin
collection PubMed
description The precise nature of complex structural relaxation as well as an explanation for the precipitous growth of relaxation time in cooling glass-forming liquids are essential to the understanding of vitrification of liquids. The dramatic increase of relaxation time is believed to be caused by the growth of one or more correlation lengths, which has received much attention recently. Here, we report a direct link between the growth of a specific local-geometrical-order and an increase of dynamic-length-scale as the atomic dynamics in metallic glass-forming liquids slow down. Although several types of local geometrical-orders are present in these metallic liquids, the growth of icosahedral ordering is found to be directly related to the increase of the dynamic-length-scale. This finding suggests an intriguing scenario that the transient icosahedral connectivity could be the origin of the dynamic-length-scale in metallic glass-forming liquids.
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spelling pubmed-57926012018-02-12 The role of local-geometrical-orders on the growth of dynamic-length-scales in glass-forming liquids Wong, Kaikin Krishnan, Rithin P. Chen, Changjiu Du, Qing Yu, Dehong Lu, Zhaoping Samwer, K. Chathoth, Suresh M. Sci Rep Article The precise nature of complex structural relaxation as well as an explanation for the precipitous growth of relaxation time in cooling glass-forming liquids are essential to the understanding of vitrification of liquids. The dramatic increase of relaxation time is believed to be caused by the growth of one or more correlation lengths, which has received much attention recently. Here, we report a direct link between the growth of a specific local-geometrical-order and an increase of dynamic-length-scale as the atomic dynamics in metallic glass-forming liquids slow down. Although several types of local geometrical-orders are present in these metallic liquids, the growth of icosahedral ordering is found to be directly related to the increase of the dynamic-length-scale. This finding suggests an intriguing scenario that the transient icosahedral connectivity could be the origin of the dynamic-length-scale in metallic glass-forming liquids. Nature Publishing Group UK 2018-01-31 /pmc/articles/PMC5792601/ /pubmed/29386575 http://dx.doi.org/10.1038/s41598-018-20470-6 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Wong, Kaikin
Krishnan, Rithin P.
Chen, Changjiu
Du, Qing
Yu, Dehong
Lu, Zhaoping
Samwer, K.
Chathoth, Suresh M.
The role of local-geometrical-orders on the growth of dynamic-length-scales in glass-forming liquids
title The role of local-geometrical-orders on the growth of dynamic-length-scales in glass-forming liquids
title_full The role of local-geometrical-orders on the growth of dynamic-length-scales in glass-forming liquids
title_fullStr The role of local-geometrical-orders on the growth of dynamic-length-scales in glass-forming liquids
title_full_unstemmed The role of local-geometrical-orders on the growth of dynamic-length-scales in glass-forming liquids
title_short The role of local-geometrical-orders on the growth of dynamic-length-scales in glass-forming liquids
title_sort role of local-geometrical-orders on the growth of dynamic-length-scales in glass-forming liquids
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5792601/
https://www.ncbi.nlm.nih.gov/pubmed/29386575
http://dx.doi.org/10.1038/s41598-018-20470-6
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