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Evolution of elastic heterogeneity during aging in metallic glasses
The properties of glasses vary widely depending on the way they are prepared, even though their structures appear similar. We show that the local potential energy landscape (PEL) sensitively reflects the stability differences through simulation of local structural excitation in a model metallic glas...
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Published in: | Physical review. E, Statistical, nonlinear, and soft matter physics Statistical, nonlinear, and soft matter physics, 2014-06, Vol.89 (6), p.062313-062313, Article 062313 |
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container_title | Physical review. E, Statistical, nonlinear, and soft matter physics |
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creator | Fan, Yue Iwashita, Takuya Egami, Takeshi |
description | The properties of glasses vary widely depending on the way they are prepared, even though their structures appear similar. We show that the local potential energy landscape (PEL) sensitively reflects the stability differences through simulation of local structural excitation in a model metallic glass. It is observed that the spectrum of local structural excitation develops a pseudogap at low energies as the glass becomes more stable. We also demonstrate that the spatial variation of the atomic level shear modulus, rather than the distribution of the magnitude of the single atom shear modulus, is more closely related to the nature of the PEL and the stabilities of glasses. In particular, local aggregation of atoms with low shear modulus greatly contributes to instability of the system. |
doi_str_mv | 10.1103/physreve.89.062313 |
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In particular, local aggregation of atoms with low shear modulus greatly contributes to instability of the system.</description><subject>Computer Simulation</subject><subject>Copper - chemistry</subject><subject>Elasticity</subject><subject>Glass - chemistry</subject><subject>Kinetics</subject><subject>Metals - chemistry</subject><subject>Models, Chemical</subject><subject>Probability</subject><subject>Shear Strength</subject><subject>Thermodynamics</subject><subject>Zirconium - chemistry</subject><issn>1539-3755</issn><issn>1550-2376</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNo9kMtOwzAQRS0EoqXwAyxQlmxS_EjseImq8pAqgRCsLceZpkZJXOykUv4eRy1sZmZx78zcg9AtwUtCMHvY78bg4QDLQi4xp4ywMzQneY5TygQ_n2YmUybyfIauQvjGmFFWZJdoRnNMpCjoHK3WB9cMvXVd4rYJNDr01iQ76MG7Gjqw_ZhUg7ddneh6qrZLWuh100RZHeUBwjW62OomwM2pL9DX0_pz9ZJu3p5fV4-b1GSk6FOCuSggXhaC6ulfQwWuWMZFqTUHAJkZqquSlBXJYwKKBTGaSsx1kQlD2QLdH_fuvfsZIPSqtcFA0-gO3BBUjJ5ziqWUUUqPUuNdiJC2au9tq_2oCFYTPPUe4X3AYa0KqY7wounutH8oW6j-LX-02C_c7WwX</recordid><startdate>20140625</startdate><enddate>20140625</enddate><creator>Fan, Yue</creator><creator>Iwashita, Takuya</creator><creator>Egami, Takeshi</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20140625</creationdate><title>Evolution of elastic heterogeneity during aging in metallic glasses</title><author>Fan, Yue ; Iwashita, Takuya ; Egami, Takeshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c418t-10678e501772a0623c270d3467baa6eee94c2adb1bd152372071ca2906a847c23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Computer Simulation</topic><topic>Copper - chemistry</topic><topic>Elasticity</topic><topic>Glass - chemistry</topic><topic>Kinetics</topic><topic>Metals - chemistry</topic><topic>Models, Chemical</topic><topic>Probability</topic><topic>Shear Strength</topic><topic>Thermodynamics</topic><topic>Zirconium - chemistry</topic><toplevel>online_resources</toplevel><creatorcontrib>Fan, Yue</creatorcontrib><creatorcontrib>Iwashita, Takuya</creatorcontrib><creatorcontrib>Egami, Takeshi</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Physical review. 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source | American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list) |
subjects | Computer Simulation Copper - chemistry Elasticity Glass - chemistry Kinetics Metals - chemistry Models, Chemical Probability Shear Strength Thermodynamics Zirconium - chemistry |
title | Evolution of elastic heterogeneity during aging in metallic glasses |
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