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Fragility of 1D Floppy Materials

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Title: Fragility of 1D Floppy Materials
Authors: Tanaka, Keiji Browse this author →KAKEN DB
Keywords: chains
supercooled liquids
topological structures
Issue Date: Sep-2020
Publisher: Wiley-Blackwell
Journal Title: Physica status solidi B-basic solid state physics
Volume: 257
Issue: 9
Start Page: 2000206
Publisher DOI: 10.1002/pssb.202000206
Abstract: The fragility works as a fundamental concept characterizing glass-forming liquids, whereas its atomic structural interpretation remains a challenge. Herein, viscosity behaviors in polyethylene (PE), S, Se, and Te are examined, which consist of distorted chain molecules with varied interchain strength, in comparison with that in SiO2, a typical strong material. Among the 1D materials, S and PE appear to be fairly strong. Such results suggest that the viscosity exhibits Arrhenius-type behaviourif it is governed by single microscopic mechanisms such as Si-O bond scission or interchain slippages. In contrast, Se and Te appear fragile with non-Arrhenius variations, which could be ascribable to mixed inter- and intrachain interactions. Among these floppy materials, it is known that Se is the best glass former, the reason being discussed.
Rights: This is the peer reviewed version of the following article: Tanaka, K. (2020), Fragility of 1D Floppy Materials. Phys. Status Solidi B, 257: 2000206, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 田中 啓司

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