Structural, vibrational and electronic properties of alpha&apos

[EN] We report a joint experimental and theoretical study of the low-pressure phase of ¿¿-Ga2S3 under compression. Theoretical ab initio calculations have been compared to X-ray diffraction and Raman scattering measurements under high pressure carried out up to 17.5 and 16.1 GPa, respectively. In ad...

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Autores: Gallego-Parra, Samuel|||0000-0001-6516-4303, Vilaplana Cerda, Rosario Isabel|||0000-0003-0504-2157, Gomis, O.|||0000-0001-6763-0638, Sans-Tresserras, Juan Ángel|||0000-0001-9047-3992, Cuenca-Gotor, Vanesa Paula|||0000-0003-0819-8528, Manjón, Francisco-Javier|||0000-0002-3926-1705, Lora da Silva, E., Otero-de-la-Roza, A., Rodríguez-Hernández, P., Muñoz, A., González, J., Ibáñez, J., Popescu, C.
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/182146
Acceso en línea:https://riunet.upv.es/handle/10251/182146
Access Level:acceso abierto
Palabra clave:Ga2S3
High pressure
Structural properties
Vibrational properties
Electronic properties
Raman scattering
X-ray diffraction
FISICA APLICADA
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oai_identifier_str oai:riunet.upv.es:10251/182146
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Structural, vibrational and electronic properties of alpha&apos
-Ga2S3 under compression
title Structural, vibrational and electronic properties of alpha&apos
spellingShingle Structural, vibrational and electronic properties of alpha&apos
Gallego-Parra, Samuel|||0000-0001-6516-4303
Ga2S3
High pressure
Structural properties
Vibrational properties
Electronic properties
Raman scattering
X-ray diffraction
FISICA APLICADA
title_short Structural, vibrational and electronic properties of alpha&apos
title_full Structural, vibrational and electronic properties of alpha&apos
title_fullStr Structural, vibrational and electronic properties of alpha&apos
title_full_unstemmed Structural, vibrational and electronic properties of alpha&apos
title_sort Structural, vibrational and electronic properties of alpha&apos
dc.creator.none.fl_str_mv Gallego-Parra, Samuel|||0000-0001-6516-4303
Vilaplana Cerda, Rosario Isabel|||0000-0003-0504-2157
Gomis, O.|||0000-0001-6763-0638
Sans-Tresserras, Juan Ángel|||0000-0001-9047-3992
Cuenca-Gotor, Vanesa Paula|||0000-0003-0819-8528
Manjón, Francisco-Javier|||0000-0002-3926-1705
Lora da Silva, E.
Otero-de-la-Roza, A.
Rodríguez-Hernández, P.
Muñoz, A.
González, J.
Ibáñez, J.
Popescu, C.
author Gallego-Parra, Samuel|||0000-0001-6516-4303
author_facet Gallego-Parra, Samuel|||0000-0001-6516-4303
Vilaplana Cerda, Rosario Isabel|||0000-0003-0504-2157
Gomis, O.|||0000-0001-6763-0638
Sans-Tresserras, Juan Ángel|||0000-0001-9047-3992
Cuenca-Gotor, Vanesa Paula|||0000-0003-0819-8528
Manjón, Francisco-Javier|||0000-0002-3926-1705
Lora da Silva, E.
Otero-de-la-Roza, A.
Rodríguez-Hernández, P.
Muñoz, A.
González, J.
Ibáñez, J.
Popescu, C.
author_role author
author2 Vilaplana Cerda, Rosario Isabel|||0000-0003-0504-2157
Gomis, O.|||0000-0001-6763-0638
Sans-Tresserras, Juan Ángel|||0000-0001-9047-3992
Cuenca-Gotor, Vanesa Paula|||0000-0003-0819-8528
Manjón, Francisco-Javier|||0000-0002-3926-1705
Lora da Silva, E.
Otero-de-la-Roza, A.
Rodríguez-Hernández, P.
Muñoz, A.
González, J.
Ibáñez, J.
Popescu, C.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física Aplicada
Escuela Técnica Superior de Ingeniería Aeroespacial y Diseño Industrial
Instituto de Diseño para la Fabricación y Producción Automatizada
Escuela Politécnica Superior de Alcoy
Centro de Tecnologías Físicas: Acústica, Materiales y Astrofísica
Generalitat Valenciana
ALBA Synchrotron Light Source
AGENCIA ESTATAL DE INVESTIGACION
Ministerio de Economía y Empresa
Agencia Estatal de Investigación
COMISION DE LAS COMUNIDADES EUROPEA
Ministerio de Economía y Competitividad
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Ga2S3
High pressure
Structural properties
Vibrational properties
Electronic properties
Raman scattering
X-ray diffraction
FISICA APLICADA
topic Ga2S3
High pressure
Structural properties
Vibrational properties
Electronic properties
Raman scattering
X-ray diffraction
FISICA APLICADA
description [EN] We report a joint experimental and theoretical study of the low-pressure phase of ¿¿-Ga2S3 under compression. Theoretical ab initio calculations have been compared to X-ray diffraction and Raman scattering measurements under high pressure carried out up to 17.5 and 16.1 GPa, respectively. In addition, we report Raman scattering measurements of ¿¿-Ga2S3 at high temperature that have allowed us to study its anharmonic properties. To understand better the compression of this compound, we have evaluated the topological properties of the electron density, the electron localization function, and the electronic properties as a function of pressure. As a result, we shed light on the role of the Ga¿S bonds, the van der Waals interactions inside the channels of the crystalline structure, and the single and double lone electron pairs of the sulphur atoms in the anisotropic compression of ¿¿-Ga2S3. We found that the structural channels are responsible for the anisotropic properties of ¿¿-Ga2S3 and the A¿(6) phonon, known as the breathing mode and associated with these channels, exhibits the highest anharmonic behaviour. Finally, we report calculations of the electronic band structure of ¿¿-Ga2S3 at different pressures and find a nonlinear pressure behaviour of the direct band gap and a pressure-induced direct-to-indirect band gap crossover that is similar to the behaviour previously reported in other ordered-vacancy compounds, including ß-Ga2Se3. The importance of the single and, more specially, the double lone electron pairs of sulphur in the pressure dependence of the topmost valence band of ¿¿-Ga2S3 is stressed.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-03-21
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://riunet.upv.es/handle/10251/182146
url https://riunet.upv.es/handle/10251/182146
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016 FIS2017-83295-P EN BUSCA DE LA REACCION DEL HELIO EN CONDICIONES EXTREMAS
Generalitat Valenciana https://doi.org/10.13039/501100003359 GVPROMETEO2018-123 Materiales avanzados para el uso eficiente de la energia (EFIMAT)
Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PGC2018-097520-A-I00 ESTABILIDAD ESTRUCTURAL Y REACTIVIDAD DE DIOXIDO DE CARBONO Y CARBONATOS A ALTAS PRESIONES Y ALTAS TEMPERATURAS
ALBA Synchrotron Light Source ALBA Synchrotron Light Source ID 2017022088 HIGH-PRESSURE X-RAY POWDER DIFFRACTION STUDY OF Ga2S3 AND In2S3 PHASES
Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2019-106383GB-C42 SESQUIOXIDOS Y COMPUESTOS METAVALENTES BAJO CONDICIONES EXTREMAS
Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 PGC2018-097520-A-I00 ESTABILIDAD ESTRUCTURAL Y REACTIVIDAD DE DIOXIDO DE CARBONO Y CARBONATOS A ALTAS PRESIONES Y ALTAS TEMPERATURAS
Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2019-106383GB-C43 SIMULACIONES AB INITIO DE MATERIALES AVANZADOS BAJO CONDICIONES EXTREMAS
Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 MAT2016-75586-C4-2-P COMPUESTOS ABO3 Y A2X3 EN CONDICIONES EXTREMAS DE PRESION Y TEMPERATURA
European Commission https://doi.org/10.13039/501100000780 H2020 785789
Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 RED2018-102612-T MALTA- CONSOLIDER TEAM
Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 RYC-2015-17482 RYC-2015-17482
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
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
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv The Royal Society of Chemistry
publisher.none.fl_str_mv The Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling Structural, vibrational and electronic properties of alpha&apos-Ga2S3 under compressionGallego-Parra, Samuel|||0000-0001-6516-4303Vilaplana Cerda, Rosario Isabel|||0000-0003-0504-2157Gomis, O.|||0000-0001-6763-0638Sans-Tresserras, Juan Ángel|||0000-0001-9047-3992Cuenca-Gotor, Vanesa Paula|||0000-0003-0819-8528Manjón, Francisco-Javier|||0000-0002-3926-1705Lora da Silva, E.Otero-de-la-Roza, A.Rodríguez-Hernández, P.Muñoz, A.González, J.Ibáñez, J.Popescu, C.Ga2S3High pressureStructural propertiesVibrational propertiesElectronic propertiesRaman scatteringX-ray diffractionFISICA APLICADA[EN] We report a joint experimental and theoretical study of the low-pressure phase of ¿¿-Ga2S3 under compression. Theoretical ab initio calculations have been compared to X-ray diffraction and Raman scattering measurements under high pressure carried out up to 17.5 and 16.1 GPa, respectively. In addition, we report Raman scattering measurements of ¿¿-Ga2S3 at high temperature that have allowed us to study its anharmonic properties. To understand better the compression of this compound, we have evaluated the topological properties of the electron density, the electron localization function, and the electronic properties as a function of pressure. As a result, we shed light on the role of the Ga¿S bonds, the van der Waals interactions inside the channels of the crystalline structure, and the single and double lone electron pairs of the sulphur atoms in the anisotropic compression of ¿¿-Ga2S3. We found that the structural channels are responsible for the anisotropic properties of ¿¿-Ga2S3 and the A¿(6) phonon, known as the breathing mode and associated with these channels, exhibits the highest anharmonic behaviour. Finally, we report calculations of the electronic band structure of ¿¿-Ga2S3 at different pressures and find a nonlinear pressure behaviour of the direct band gap and a pressure-induced direct-to-indirect band gap crossover that is similar to the behaviour previously reported in other ordered-vacancy compounds, including ß-Ga2Se3. The importance of the single and, more specially, the double lone electron pairs of sulphur in the pressure dependence of the topmost valence band of ¿¿-Ga2S3 is stressed.The authors thank the financial support from the Spanish Research Agency (AEI) under projects MALTA Consolider Team network (RED2018-102612-T) and projects MAT2016-75586-C4-2/3-P, FIS2017-83295-P, PID2019-106383GB-42/43, and PGC2018-097520-A-100, as well as from Generalitat Valenciana under Project PROMETEO/2018/123 (EFIMAT). A. M. and P. R.-H. acknowledge computing time provided by Red Espanola de Supercomputacion (RES) and MALTA-Cluster and E. L. D. S. acknowledges Marie Sklodowska-Curie Grant No. 785789-COMEX from the European Union's Horizon 2020 research and innovation program. J. A. S. also wants to thank the Ramon y Cajal fellowship (RYC-2015-17482) for financial support. We also thank the ALBA synchrotron light source for funded experiment 2017022088 at the MSPD-BL04 beamline.The Royal Society of ChemistryDepartamento de Física AplicadaEscuela Técnica Superior de Ingeniería Aeroespacial y Diseño IndustrialInstituto de Diseño para la Fabricación y Producción AutomatizadaEscuela Politécnica Superior de AlcoyCentro de Tecnologías Físicas: Acústica, Materiales y AstrofísicaGeneralitat ValencianaALBA Synchrotron Light SourceAGENCIA ESTATAL DE INVESTIGACIONMinisterio de Economía y EmpresaAgencia Estatal de InvestigaciónCOMISION DE LAS COMUNIDADES EUROPEAMinisterio de Economía y CompetitividadRepositorio Institucional de la Universitat Politècnica de València Riunet20212021-03-21journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/182146reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016 FIS2017-83295-P EN BUSCA DE LA REACCION DEL HELIO EN CONDICIONES EXTREMASGeneralitat Valenciana https://doi.org/10.13039/501100003359 GVPROMETEO2018-123 Materiales avanzados para el uso eficiente de la energia (EFIMAT)Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PGC2018-097520-A-I00 ESTABILIDAD ESTRUCTURAL Y REACTIVIDAD DE DIOXIDO DE CARBONO Y CARBONATOS A ALTAS PRESIONES Y ALTAS TEMPERATURASALBA Synchrotron Light Source ALBA Synchrotron Light Source ID 2017022088 HIGH-PRESSURE X-RAY POWDER DIFFRACTION STUDY OF Ga2S3 AND In2S3 PHASESAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2019-106383GB-C42 SESQUIOXIDOS Y COMPUESTOS METAVALENTES BAJO CONDICIONES EXTREMASAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 PGC2018-097520-A-I00 ESTABILIDAD ESTRUCTURAL Y REACTIVIDAD DE DIOXIDO DE CARBONO Y CARBONATOS A ALTAS PRESIONES Y ALTAS TEMPERATURASAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2019-106383GB-C43 SIMULACIONES AB INITIO DE MATERIALES AVANZADOS BAJO CONDICIONES EXTREMASAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 MAT2016-75586-C4-2-P COMPUESTOS ABO3 Y A2X3 EN CONDICIONES EXTREMAS DE PRESION Y TEMPERATURAEuropean Commission https://doi.org/10.13039/501100000780 H2020 785789Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 RED2018-102612-T MALTA- CONSOLIDER TEAMMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 RYC-2015-17482 RYC-2015-17482open accesshttp://purl.org/coar/access_right/c_abf2Reserva de todos los derechoshttp://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/1821462026-06-13T07:49:27Z
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