Electron-phonon coupling in the charge density wave state of CsV\(_3\)Sb\(_5\)
Metallic materials with kagome lattice structure are interesting because their electronic structures can host flat bands, Dirac cones, and van Hove singularities, resulting in strong electron correlations, nontrivial band topology, charge density wave (CDW), and unconventional superconductivity. Rec...
Gespeichert in:
| Veröffentlicht in: | arXiv.org 2021-11 |
|---|---|
| Hauptverfasser: | , , , , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | arXiv.org |
| container_volume | |
| creator | Xie, Yaofeng Li, Yongkai Bourges, Philippe Ivanov, Alexandre Ye, Zijin Jia-Xin, Yin M Zahid Hasan Luo, Aiyun Yao, Yugui Wang, Zhiwei Xu, Gang Dai, Pengcheng |
| description | Metallic materials with kagome lattice structure are interesting because their electronic structures can host flat bands, Dirac cones, and van Hove singularities, resulting in strong electron correlations, nontrivial band topology, charge density wave (CDW), and unconventional superconductivity. Recently, kagome lattice compounds AV\(_3\)Sb\(_5\) (A = K, Rb, Cs) are found to have intertwined CDW order and superconductivity. The origin of the CDW has been suggested to be purely electronic, arising from Fermi-surface instabilities of van Hove singularity (saddle point) near the M points. Here we use neutron scattering experiments to demonstrate that the CDW order in CsV\(_3\)Sb\(_5\) is associated with static lattice distortion and a sudden hardening of the B3u longitudinal optical phonon mode, thus establishing that electron-phonon coupling must also play an important role in the CDW order of AV\(_3\)Sb\(_5\). |
| doi_str_mv | 10.48550/arxiv.2111.00654 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest</sourceid><recordid>TN_cdi_proquest_journals_2591831766</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2591831766</sourcerecordid><originalsourceid>FETCH-proquest_journals_25918317663</originalsourceid><addsrcrecordid>eNqNyrsKwjAYQOEgCBbtA7j94KJDay5NW2dRnFwUp0KJNb1RkpqkXt5eBx_A6RvOQWhOcBilnOO1MK_mEVJCSIhxzKMR8ihjJEgjSifIt7bFGNM4oZwzDx13nSyc0Sroa620gkIPfdeoChoFrpZQ1MJUEm5S2ca94SkeEqwTToIuYWsv2TJn2ep0_cqz1QyNS9FZ6f-cosV-d94egt7o-yCty1s9GPVNOeUbkjKSxDH77_oAfCVC-g</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2591831766</pqid></control><display><type>article</type><title>Electron-phonon coupling in the charge density wave state of CsV\(_3\)Sb\(_5\)</title><source>Free E- Journals</source><creator>Xie, Yaofeng ; Li, Yongkai ; Bourges, Philippe ; Ivanov, Alexandre ; Ye, Zijin ; Jia-Xin, Yin ; M Zahid Hasan ; Luo, Aiyun ; Yao, Yugui ; Wang, Zhiwei ; Xu, Gang ; Dai, Pengcheng</creator><creatorcontrib>Xie, Yaofeng ; Li, Yongkai ; Bourges, Philippe ; Ivanov, Alexandre ; Ye, Zijin ; Jia-Xin, Yin ; M Zahid Hasan ; Luo, Aiyun ; Yao, Yugui ; Wang, Zhiwei ; Xu, Gang ; Dai, Pengcheng</creatorcontrib><description>Metallic materials with kagome lattice structure are interesting because their electronic structures can host flat bands, Dirac cones, and van Hove singularities, resulting in strong electron correlations, nontrivial band topology, charge density wave (CDW), and unconventional superconductivity. Recently, kagome lattice compounds AV\(_3\)Sb\(_5\) (A = K, Rb, Cs) are found to have intertwined CDW order and superconductivity. The origin of the CDW has been suggested to be purely electronic, arising from Fermi-surface instabilities of van Hove singularity (saddle point) near the M points. Here we use neutron scattering experiments to demonstrate that the CDW order in CsV\(_3\)Sb\(_5\) is associated with static lattice distortion and a sudden hardening of the B3u longitudinal optical phonon mode, thus establishing that electron-phonon coupling must also play an important role in the CDW order of AV\(_3\)Sb\(_5\).</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.2111.00654</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Banded structure ; Charge density waves ; Cones ; Coupling ; Electrons ; Kagome lattice ; Neutron scattering ; Phonons ; Saddle points ; Singularities ; Topology ; Unconventional superconductivity</subject><ispartof>arXiv.org, 2021-11</ispartof><rights>2021. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>777,781,27906</link.rule.ids></links><search><creatorcontrib>Xie, Yaofeng</creatorcontrib><creatorcontrib>Li, Yongkai</creatorcontrib><creatorcontrib>Bourges, Philippe</creatorcontrib><creatorcontrib>Ivanov, Alexandre</creatorcontrib><creatorcontrib>Ye, Zijin</creatorcontrib><creatorcontrib>Jia-Xin, Yin</creatorcontrib><creatorcontrib>M Zahid Hasan</creatorcontrib><creatorcontrib>Luo, Aiyun</creatorcontrib><creatorcontrib>Yao, Yugui</creatorcontrib><creatorcontrib>Wang, Zhiwei</creatorcontrib><creatorcontrib>Xu, Gang</creatorcontrib><creatorcontrib>Dai, Pengcheng</creatorcontrib><title>Electron-phonon coupling in the charge density wave state of CsV\(_3\)Sb\(_5\)</title><title>arXiv.org</title><description>Metallic materials with kagome lattice structure are interesting because their electronic structures can host flat bands, Dirac cones, and van Hove singularities, resulting in strong electron correlations, nontrivial band topology, charge density wave (CDW), and unconventional superconductivity. Recently, kagome lattice compounds AV\(_3\)Sb\(_5\) (A = K, Rb, Cs) are found to have intertwined CDW order and superconductivity. The origin of the CDW has been suggested to be purely electronic, arising from Fermi-surface instabilities of van Hove singularity (saddle point) near the M points. Here we use neutron scattering experiments to demonstrate that the CDW order in CsV\(_3\)Sb\(_5\) is associated with static lattice distortion and a sudden hardening of the B3u longitudinal optical phonon mode, thus establishing that electron-phonon coupling must also play an important role in the CDW order of AV\(_3\)Sb\(_5\).</description><subject>Banded structure</subject><subject>Charge density waves</subject><subject>Cones</subject><subject>Coupling</subject><subject>Electrons</subject><subject>Kagome lattice</subject><subject>Neutron scattering</subject><subject>Phonons</subject><subject>Saddle points</subject><subject>Singularities</subject><subject>Topology</subject><subject>Unconventional superconductivity</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqNyrsKwjAYQOEgCBbtA7j94KJDay5NW2dRnFwUp0KJNb1RkpqkXt5eBx_A6RvOQWhOcBilnOO1MK_mEVJCSIhxzKMR8ihjJEgjSifIt7bFGNM4oZwzDx13nSyc0Sroa620gkIPfdeoChoFrpZQ1MJUEm5S2ca94SkeEqwTToIuYWsv2TJn2ep0_cqz1QyNS9FZ6f-cosV-d94egt7o-yCty1s9GPVNOeUbkjKSxDH77_oAfCVC-g</recordid><startdate>20211101</startdate><enddate>20211101</enddate><creator>Xie, Yaofeng</creator><creator>Li, Yongkai</creator><creator>Bourges, Philippe</creator><creator>Ivanov, Alexandre</creator><creator>Ye, Zijin</creator><creator>Jia-Xin, Yin</creator><creator>M Zahid Hasan</creator><creator>Luo, Aiyun</creator><creator>Yao, Yugui</creator><creator>Wang, Zhiwei</creator><creator>Xu, Gang</creator><creator>Dai, Pengcheng</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>20211101</creationdate><title>Electron-phonon coupling in the charge density wave state of CsV\(_3\)Sb\(_5\)</title><author>Xie, Yaofeng ; Li, Yongkai ; Bourges, Philippe ; Ivanov, Alexandre ; Ye, Zijin ; Jia-Xin, Yin ; M Zahid Hasan ; Luo, Aiyun ; Yao, Yugui ; Wang, Zhiwei ; Xu, Gang ; Dai, Pengcheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_journals_25918317663</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Banded structure</topic><topic>Charge density waves</topic><topic>Cones</topic><topic>Coupling</topic><topic>Electrons</topic><topic>Kagome lattice</topic><topic>Neutron scattering</topic><topic>Phonons</topic><topic>Saddle points</topic><topic>Singularities</topic><topic>Topology</topic><topic>Unconventional superconductivity</topic><toplevel>online_resources</toplevel><creatorcontrib>Xie, Yaofeng</creatorcontrib><creatorcontrib>Li, Yongkai</creatorcontrib><creatorcontrib>Bourges, Philippe</creatorcontrib><creatorcontrib>Ivanov, Alexandre</creatorcontrib><creatorcontrib>Ye, Zijin</creatorcontrib><creatorcontrib>Jia-Xin, Yin</creatorcontrib><creatorcontrib>M Zahid Hasan</creatorcontrib><creatorcontrib>Luo, Aiyun</creatorcontrib><creatorcontrib>Yao, Yugui</creatorcontrib><creatorcontrib>Wang, Zhiwei</creatorcontrib><creatorcontrib>Xu, Gang</creatorcontrib><creatorcontrib>Dai, Pengcheng</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xie, Yaofeng</au><au>Li, Yongkai</au><au>Bourges, Philippe</au><au>Ivanov, Alexandre</au><au>Ye, Zijin</au><au>Jia-Xin, Yin</au><au>M Zahid Hasan</au><au>Luo, Aiyun</au><au>Yao, Yugui</au><au>Wang, Zhiwei</au><au>Xu, Gang</au><au>Dai, Pengcheng</au><format>book</format><genre>document</genre><ristype>GEN</ristype><atitle>Electron-phonon coupling in the charge density wave state of CsV\(_3\)Sb\(_5\)</atitle><jtitle>arXiv.org</jtitle><date>2021-11-01</date><risdate>2021</risdate><eissn>2331-8422</eissn><abstract>Metallic materials with kagome lattice structure are interesting because their electronic structures can host flat bands, Dirac cones, and van Hove singularities, resulting in strong electron correlations, nontrivial band topology, charge density wave (CDW), and unconventional superconductivity. Recently, kagome lattice compounds AV\(_3\)Sb\(_5\) (A = K, Rb, Cs) are found to have intertwined CDW order and superconductivity. The origin of the CDW has been suggested to be purely electronic, arising from Fermi-surface instabilities of van Hove singularity (saddle point) near the M points. Here we use neutron scattering experiments to demonstrate that the CDW order in CsV\(_3\)Sb\(_5\) is associated with static lattice distortion and a sudden hardening of the B3u longitudinal optical phonon mode, thus establishing that electron-phonon coupling must also play an important role in the CDW order of AV\(_3\)Sb\(_5\).</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.2111.00654</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 2331-8422 |
| ispartof | arXiv.org, 2021-11 |
| issn | 2331-8422 |
| language | eng |
| recordid | cdi_proquest_journals_2591831766 |
| source | Free E- Journals |
| subjects | Banded structure Charge density waves Cones Coupling Electrons Kagome lattice Neutron scattering Phonons Saddle points Singularities Topology Unconventional superconductivity |
| title | Electron-phonon coupling in the charge density wave state of CsV\(_3\)Sb\(_5\) |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-19T18%3A00%3A45IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=document&rft.atitle=Electron-phonon%20coupling%20in%20the%20charge%20density%20wave%20state%20of%20CsV%5C(_3%5C)Sb%5C(_5%5C)&rft.jtitle=arXiv.org&rft.au=Xie,%20Yaofeng&rft.date=2021-11-01&rft.eissn=2331-8422&rft_id=info:doi/10.48550/arxiv.2111.00654&rft_dat=%3Cproquest%3E2591831766%3C/proquest%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2591831766&rft_id=info:pmid/&rfr_iscdi=true |