Synthesis and insights into crystal structure, lattice dynamics and dielectric function of a new 9P–van der Waals compound SnBi4Te4

The single crystal of SnBi4Te4—a member of n(Bi2)∙m(SnBi2Te4) homological series and potential candidate material with nontrivial topology was grown by the modified Bridgman method and characterized by X-ray diffraction (XRD), scanning electron microscopy with an energy dispersive X-ray spectrometer...

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Autores: Aliev, Ziya S., Mehtiyeva, Khatira Z., Alizade, Elvin H., Jahangirli, Zakir A., Casciaro, Martina, Papagno, Marco, Otrokov, Mikhail M., Isobe, Masahiko, Amiraslanov, Imamaddin R., Zúñiga, Fco. Javier, Mamedov, Nazim T., Chulkov, Evgueni V.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2026
País:España
Recursos:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:168609
Acesso em linha:http://zaguan.unizar.es/record/168609
Access Level:acceso embargado
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spelling Synthesis and insights into crystal structure, lattice dynamics and dielectric function of a new 9P–van der Waals compound SnBi4Te4Aliev, Ziya S.Mehtiyeva, Khatira Z.Alizade, Elvin H.Jahangirli, Zakir A.Casciaro, MartinaPapagno, MarcoOtrokov, Mikhail M.Isobe, MasahikoAmiraslanov, Imamaddin R.Zúñiga, Fco. JavierMamedov, Nazim T.Chulkov, Evgueni V.The single crystal of SnBi4Te4—a member of n(Bi2)∙m(SnBi2Te4) homological series and potential candidate material with nontrivial topology was grown by the modified Bridgman method and characterized by X-ray diffraction (XRD), scanning electron microscopy with an energy dispersive X-ray spectrometer (SEM–EDX), and X-ray photoelectron spectroscopy (XPS). High single-crystalline quality of the grown crystal without any signs of surface contaminants detectable by SEM–EDX and XPS was confirmed by XRD. According to the results of Rietveld analysis of the XRD data, a trigonal structure with the P-3m1 space group symmetry and a stacking sequence of atomic layers similar to that of the 9P polytype crystal structure of GeSb4Te4 is inherent to SnBi4Te4. The crystal structure is built up from 7-layer rocksalt-type slabs, alternated with bismuth bilayers, with van der Waals (vdW) bonding between the two. Raman spectroscopy and spectroscopic ellipsometry (SE), complemented and supported by ab-initio calculations, provided the core information regarding the lattice dynamics and dielectric function of SnBi4Te4, as well as preliminary insight into possible functionalities of the grown material.2026info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/168609reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/MICINN-AEI/PRTR-C17.I1info:eu-repo/grantAgreement/ES/MICINN/PID2022-138210NB-I00info:eu-repo/grantAgreement/ES/MICIU/CEX2023-001286-Sinfo:eu-repo/semantics/embargoedAccessoai:zaguan.unizar.es:1686092026-05-29T13:59:51Z
dc.title.none.fl_str_mv Synthesis and insights into crystal structure, lattice dynamics and dielectric function of a new 9P–van der Waals compound SnBi4Te4
title Synthesis and insights into crystal structure, lattice dynamics and dielectric function of a new 9P–van der Waals compound SnBi4Te4
spellingShingle Synthesis and insights into crystal structure, lattice dynamics and dielectric function of a new 9P–van der Waals compound SnBi4Te4
Aliev, Ziya S.
title_short Synthesis and insights into crystal structure, lattice dynamics and dielectric function of a new 9P–van der Waals compound SnBi4Te4
title_full Synthesis and insights into crystal structure, lattice dynamics and dielectric function of a new 9P–van der Waals compound SnBi4Te4
title_fullStr Synthesis and insights into crystal structure, lattice dynamics and dielectric function of a new 9P–van der Waals compound SnBi4Te4
title_full_unstemmed Synthesis and insights into crystal structure, lattice dynamics and dielectric function of a new 9P–van der Waals compound SnBi4Te4
title_sort Synthesis and insights into crystal structure, lattice dynamics and dielectric function of a new 9P–van der Waals compound SnBi4Te4
dc.creator.none.fl_str_mv Aliev, Ziya S.
Mehtiyeva, Khatira Z.
Alizade, Elvin H.
Jahangirli, Zakir A.
Casciaro, Martina
Papagno, Marco
Otrokov, Mikhail M.
Isobe, Masahiko
Amiraslanov, Imamaddin R.
Zúñiga, Fco. Javier
Mamedov, Nazim T.
Chulkov, Evgueni V.
author Aliev, Ziya S.
author_facet Aliev, Ziya S.
Mehtiyeva, Khatira Z.
Alizade, Elvin H.
Jahangirli, Zakir A.
Casciaro, Martina
Papagno, Marco
Otrokov, Mikhail M.
Isobe, Masahiko
Amiraslanov, Imamaddin R.
Zúñiga, Fco. Javier
Mamedov, Nazim T.
Chulkov, Evgueni V.
author_role author
author2 Mehtiyeva, Khatira Z.
Alizade, Elvin H.
Jahangirli, Zakir A.
Casciaro, Martina
Papagno, Marco
Otrokov, Mikhail M.
Isobe, Masahiko
Amiraslanov, Imamaddin R.
Zúñiga, Fco. Javier
Mamedov, Nazim T.
Chulkov, Evgueni V.
author2_role author
author
author
author
author
author
author
author
author
author
author
description The single crystal of SnBi4Te4—a member of n(Bi2)∙m(SnBi2Te4) homological series and potential candidate material with nontrivial topology was grown by the modified Bridgman method and characterized by X-ray diffraction (XRD), scanning electron microscopy with an energy dispersive X-ray spectrometer (SEM–EDX), and X-ray photoelectron spectroscopy (XPS). High single-crystalline quality of the grown crystal without any signs of surface contaminants detectable by SEM–EDX and XPS was confirmed by XRD. According to the results of Rietveld analysis of the XRD data, a trigonal structure with the P-3m1 space group symmetry and a stacking sequence of atomic layers similar to that of the 9P polytype crystal structure of GeSb4Te4 is inherent to SnBi4Te4. The crystal structure is built up from 7-layer rocksalt-type slabs, alternated with bismuth bilayers, with van der Waals (vdW) bonding between the two. Raman spectroscopy and spectroscopic ellipsometry (SE), complemented and supported by ab-initio calculations, provided the core information regarding the lattice dynamics and dielectric function of SnBi4Te4, as well as preliminary insight into possible functionalities of the grown material.
publishDate 2026
dc.date.none.fl_str_mv 2026
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dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/168609
url http://zaguan.unizar.es/record/168609
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/ES/MICINN-AEI/PRTR-C17.I1
info:eu-repo/grantAgreement/ES/MICINN/PID2022-138210NB-I00
info:eu-repo/grantAgreement/ES/MICIU/CEX2023-001286-S
dc.rights.none.fl_str_mv info:eu-repo/semantics/embargoedAccess
eu_rights_str_mv embargoedAccess
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dc.source.none.fl_str_mv reponame:Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
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