Microscopic evidence of the connection between liquid-liquid transition and dynamical crossover in an ultraviscous metallic glass former

Liquid-liquid transitions are interesting to many researchers since they occur in systems as diverse as monoatomic liquids, multicomponent oxides, and metallic glass formers. In some cases, the crossover is accompanied by changes in the dynamical properties. By combining state-of-the-art synchrotron...

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Autores: Hechler, Simon, Ruta, Beatrice, Stolpe, Moritz, Pineda Soler, Eloi|||0000-0002-1871-3848, Evenson, Zach, Gross, Oliver, Bernasconi, Andrea, Busch, Ralf, Gallino, Isabella
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/127261
Acceso en línea:https://hdl.handle.net/2117/127261
https://dx.doi.org/10.1103/PhysRevMaterials.2.085603
Access Level:acceso abierto
Palabra clave:Metallic glasses
X-ray diffraction
Liquid-Liquid Phase transition
Disordered systems
Calorimetry
X-ray Diffraction
Dynamic Mechanical analysis
Vidres metàl·lics
Raigs X -- Difracció
Àrees temàtiques de la UPC::Enginyeria dels materials
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spelling Microscopic evidence of the connection between liquid-liquid transition and dynamical crossover in an ultraviscous metallic glass formerHechler, SimonRuta, BeatriceStolpe, MoritzPineda Soler, Eloi|||0000-0002-1871-3848Evenson, ZachGross, OliverBernasconi, AndreaBusch, RalfGallino, IsabellaMetallic glassesX-ray diffractionLiquid-Liquid Phase transitionMetallic glassesDisordered systemsCalorimetryX-ray DiffractionDynamic Mechanical analysisVidres metàl·licsRaigs X -- DifraccióÀrees temàtiques de la UPC::Enginyeria dels materialsLiquid-liquid transitions are interesting to many researchers since they occur in systems as diverse as monoatomic liquids, multicomponent oxides, and metallic glass formers. In some cases, the crossover is accompanied by changes in the dynamical properties. By combining state-of-the-art synchrotron techniques, we followed the structure and atomic motion during quasistatic cooling of the Au49Cu26.9Si16.3Ag5.5Pd2.3 metallic glass former from the low-temperature supercooled liquid. With this thermal protocol, we were able to lower the glass transition temperature far enough to reveal a liquid-liquid crossover between two amorphous structures corresponding to two ultraviscous liquids with different kinetic behavior. This transition is in competition with vitrification, which occurs at conventional cooling rates, and is accompanied by structural changes not affecting the average density. Our results provide a direct connection between polyamorphism and dynamical crossover, and an alternative case to add to the highly debated topic on the low-temperature divergence of the dynamics in supercooled liquids.Peer ReviewedAmerican Physical Society (APS)20182018-08-2320192019-01-21journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/127261https://dx.doi.org/10.1103/PhysRevMaterials.2.085603reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengMinisterio de Economía y Competitividad http://doi.org/10.13039/501100003329 FIS2014-54734-P VIDRIOS ORGANICOS Y METALICOS: ESTRUCTURA, DINAMICA Y ESTABILIDADopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1272612026-05-27T15:37:01Z
dc.title.none.fl_str_mv Microscopic evidence of the connection between liquid-liquid transition and dynamical crossover in an ultraviscous metallic glass former
title Microscopic evidence of the connection between liquid-liquid transition and dynamical crossover in an ultraviscous metallic glass former
spellingShingle Microscopic evidence of the connection between liquid-liquid transition and dynamical crossover in an ultraviscous metallic glass former
Hechler, Simon
Metallic glasses
X-ray diffraction
Liquid-Liquid Phase transition
Metallic glasses
Disordered systems
Calorimetry
X-ray Diffraction
Dynamic Mechanical analysis
Vidres metàl·lics
Raigs X -- Difracció
Àrees temàtiques de la UPC::Enginyeria dels materials
title_short Microscopic evidence of the connection between liquid-liquid transition and dynamical crossover in an ultraviscous metallic glass former
title_full Microscopic evidence of the connection between liquid-liquid transition and dynamical crossover in an ultraviscous metallic glass former
title_fullStr Microscopic evidence of the connection between liquid-liquid transition and dynamical crossover in an ultraviscous metallic glass former
title_full_unstemmed Microscopic evidence of the connection between liquid-liquid transition and dynamical crossover in an ultraviscous metallic glass former
title_sort Microscopic evidence of the connection between liquid-liquid transition and dynamical crossover in an ultraviscous metallic glass former
dc.creator.none.fl_str_mv Hechler, Simon
Ruta, Beatrice
Stolpe, Moritz
Pineda Soler, Eloi|||0000-0002-1871-3848
Evenson, Zach
Gross, Oliver
Bernasconi, Andrea
Busch, Ralf
Gallino, Isabella
author Hechler, Simon
author_facet Hechler, Simon
Ruta, Beatrice
Stolpe, Moritz
Pineda Soler, Eloi|||0000-0002-1871-3848
Evenson, Zach
Gross, Oliver
Bernasconi, Andrea
Busch, Ralf
Gallino, Isabella
author_role author
author2 Ruta, Beatrice
Stolpe, Moritz
Pineda Soler, Eloi|||0000-0002-1871-3848
Evenson, Zach
Gross, Oliver
Bernasconi, Andrea
Busch, Ralf
Gallino, Isabella
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Metallic glasses
X-ray diffraction
Liquid-Liquid Phase transition
Metallic glasses
Disordered systems
Calorimetry
X-ray Diffraction
Dynamic Mechanical analysis
Vidres metàl·lics
Raigs X -- Difracció
Àrees temàtiques de la UPC::Enginyeria dels materials
topic Metallic glasses
X-ray diffraction
Liquid-Liquid Phase transition
Metallic glasses
Disordered systems
Calorimetry
X-ray Diffraction
Dynamic Mechanical analysis
Vidres metàl·lics
Raigs X -- Difracció
Àrees temàtiques de la UPC::Enginyeria dels materials
description Liquid-liquid transitions are interesting to many researchers since they occur in systems as diverse as monoatomic liquids, multicomponent oxides, and metallic glass formers. In some cases, the crossover is accompanied by changes in the dynamical properties. By combining state-of-the-art synchrotron techniques, we followed the structure and atomic motion during quasistatic cooling of the Au49Cu26.9Si16.3Ag5.5Pd2.3 metallic glass former from the low-temperature supercooled liquid. With this thermal protocol, we were able to lower the glass transition temperature far enough to reveal a liquid-liquid crossover between two amorphous structures corresponding to two ultraviscous liquids with different kinetic behavior. This transition is in competition with vitrification, which occurs at conventional cooling rates, and is accompanied by structural changes not affecting the average density. Our results provide a direct connection between polyamorphism and dynamical crossover, and an alternative case to add to the highly debated topic on the low-temperature divergence of the dynamics in supercooled liquids.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-08-23
2019
2019-01-21
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/127261
https://dx.doi.org/10.1103/PhysRevMaterials.2.085603
url https://hdl.handle.net/2117/127261
https://dx.doi.org/10.1103/PhysRevMaterials.2.085603
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad http://doi.org/10.13039/501100003329 FIS2014-54734-P VIDRIOS ORGANICOS Y METALICOS: ESTRUCTURA, DINAMICA Y ESTABILIDAD
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society (APS)
publisher.none.fl_str_mv American Physical Society (APS)
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869418134291611648
score 15,301603

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