Penetration depth study of superconducting gap structure of 2H-NbSe2

Penetration depth study of superconducting gap structure of 2H-NbSe2

We report measurements of the temperature dependence of both in-plane and out-of-plane penetration depths (lambda(a) and lambda(c), respectively) in 2H-NbSe2. Measurements were made with a radio-frequency tunnel diode oscillator circuit at temperatures down to 100 mK. Analysis of the anisotropic sup...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physical review letters 2007-02, Vol.98 (5), p.057003-057003
Hauptverfasser: Fletcher, J D, Carrington, A, Diener, P, Rodière, P, Brison, J P, Prozorov, R, Olheiser, T, Giannetta, R W
Format: Artikel
Sprache:eng
Schlagworte:
Condensed Matter
Physics
Superconductivity
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 057003
container_issue 5
container_start_page 057003
container_title Physical review letters
container_volume 98
creator Fletcher, J D
Carrington, A
Diener, P
Rodière, P
Brison, J P
Prozorov, R
Olheiser, T
Giannetta, R W
description We report measurements of the temperature dependence of both in-plane and out-of-plane penetration depths (lambda(a) and lambda(c), respectively) in 2H-NbSe2. Measurements were made with a radio-frequency tunnel diode oscillator circuit at temperatures down to 100 mK. Analysis of the anisotropic superfluid density shows that a reduced energy gap is located on one or more of the quasi-two-dimensional Nb Fermi surface sheets rather than on the Se sheet, in contrast with some previous reports. This result suggests that the gap structure is not simply related to the weak electron-phonon coupling on the Se sheet and is therefore important for microscopic models of anisotropic superconductivity in this compound.
doi_str_mv 10.1103/PhysRevLett.98.057003
format Article
fullrecord <record><control><sourceid>proquest_hal_p</sourceid><recordid>TN_cdi_hal_primary_oai_HAL_hal_00965433v1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>70273931</sourcerecordid><originalsourceid>FETCH-LOGICAL-h243t-7db16681944057f49187d00beb74f72457775cc93cf555d6270d8b11d93f14793</originalsourceid><addsrcrecordid>eNo9kFtLw0AQhRdRbK3-BCVPgg-pM9lNZvex1EuFoMXLc0iymybSJjG7KfTfm9Lq02HO-TgMh7FrhCki8PtlubPvZhsb56ZKTiEkAH7CxgikfEIUp2w8OOgrABqxC2u_AQCDSJ6zERIPpZTRmD0sTW1cl7qqqT1tWld61vV65zWFZ_vWdHlT6z53Vb3yVmk7hN1w9Z3ZA8HCf80-THDJzop0bc3VUSfs6-nxc77w47fnl_ks9stAcOeTzjCKJCohhncLoVCSBshMRqKgQIREFOa54nkRhqGOAgItM0SteIGCFJ-wu0Nvma6Ttqs2abdLmrRKFrM42XsAKgoF51sc2NsD23bNT2-sSzaVzc16ndam6W1CEBBXfA_eHME-2xj93_u3Ef8FOmBpDA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>70273931</pqid></control><display><type>article</type><title>Penetration depth study of superconducting gap structure of 2H-NbSe2</title><source>American Physical Society Journals</source><creator>Fletcher, J D ; Carrington, A ; Diener, P ; Rodière, P ; Brison, J P ; Prozorov, R ; Olheiser, T ; Giannetta, R W</creator><creatorcontrib>Fletcher, J D ; Carrington, A ; Diener, P ; Rodière, P ; Brison, J P ; Prozorov, R ; Olheiser, T ; Giannetta, R W</creatorcontrib><description>We report measurements of the temperature dependence of both in-plane and out-of-plane penetration depths (lambda(a) and lambda(c), respectively) in 2H-NbSe2. Measurements were made with a radio-frequency tunnel diode oscillator circuit at temperatures down to 100 mK. Analysis of the anisotropic superfluid density shows that a reduced energy gap is located on one or more of the quasi-two-dimensional Nb Fermi surface sheets rather than on the Se sheet, in contrast with some previous reports. This result suggests that the gap structure is not simply related to the weak electron-phonon coupling on the Se sheet and is therefore important for microscopic models of anisotropic superconductivity in this compound.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.98.057003</identifier><identifier>PMID: 17358886</identifier><language>eng</language><publisher>United States: American Physical Society</publisher><subject>Condensed Matter ; Physics ; Superconductivity</subject><ispartof>Physical review letters, 2007-02, Vol.98 (5), p.057003-057003</ispartof><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0001-7077-6224 ; 0000-0002-9685-2982 ; 0000-0002-2353-2742</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,777,781,882,27905,27906</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17358886$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-00965433$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Fletcher, J D</creatorcontrib><creatorcontrib>Carrington, A</creatorcontrib><creatorcontrib>Diener, P</creatorcontrib><creatorcontrib>Rodière, P</creatorcontrib><creatorcontrib>Brison, J P</creatorcontrib><creatorcontrib>Prozorov, R</creatorcontrib><creatorcontrib>Olheiser, T</creatorcontrib><creatorcontrib>Giannetta, R W</creatorcontrib><title>Penetration depth study of superconducting gap structure of 2H-NbSe2</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>We report measurements of the temperature dependence of both in-plane and out-of-plane penetration depths (lambda(a) and lambda(c), respectively) in 2H-NbSe2. Measurements were made with a radio-frequency tunnel diode oscillator circuit at temperatures down to 100 mK. Analysis of the anisotropic superfluid density shows that a reduced energy gap is located on one or more of the quasi-two-dimensional Nb Fermi surface sheets rather than on the Se sheet, in contrast with some previous reports. This result suggests that the gap structure is not simply related to the weak electron-phonon coupling on the Se sheet and is therefore important for microscopic models of anisotropic superconductivity in this compound.</description><subject>Condensed Matter</subject><subject>Physics</subject><subject>Superconductivity</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNo9kFtLw0AQhRdRbK3-BCVPgg-pM9lNZvex1EuFoMXLc0iymybSJjG7KfTfm9Lq02HO-TgMh7FrhCki8PtlubPvZhsb56ZKTiEkAH7CxgikfEIUp2w8OOgrABqxC2u_AQCDSJ6zERIPpZTRmD0sTW1cl7qqqT1tWld61vV65zWFZ_vWdHlT6z53Vb3yVmk7hN1w9Z3ZA8HCf80-THDJzop0bc3VUSfs6-nxc77w47fnl_ks9stAcOeTzjCKJCohhncLoVCSBshMRqKgQIREFOa54nkRhqGOAgItM0SteIGCFJ-wu0Nvma6Ttqs2abdLmrRKFrM42XsAKgoF51sc2NsD23bNT2-sSzaVzc16ndam6W1CEBBXfA_eHME-2xj93_u3Ef8FOmBpDA</recordid><startdate>20070202</startdate><enddate>20070202</enddate><creator>Fletcher, J D</creator><creator>Carrington, A</creator><creator>Diener, P</creator><creator>Rodière, P</creator><creator>Brison, J P</creator><creator>Prozorov, R</creator><creator>Olheiser, T</creator><creator>Giannetta, R W</creator><general>American Physical Society</general><scope>NPM</scope><scope>7X8</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0001-7077-6224</orcidid><orcidid>https://orcid.org/0000-0002-9685-2982</orcidid><orcidid>https://orcid.org/0000-0002-2353-2742</orcidid></search><sort><creationdate>20070202</creationdate><title>Penetration depth study of superconducting gap structure of 2H-NbSe2</title><author>Fletcher, J D ; Carrington, A ; Diener, P ; Rodière, P ; Brison, J P ; Prozorov, R ; Olheiser, T ; Giannetta, R W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-h243t-7db16681944057f49187d00beb74f72457775cc93cf555d6270d8b11d93f14793</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Condensed Matter</topic><topic>Physics</topic><topic>Superconductivity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fletcher, J D</creatorcontrib><creatorcontrib>Carrington, A</creatorcontrib><creatorcontrib>Diener, P</creatorcontrib><creatorcontrib>Rodière, P</creatorcontrib><creatorcontrib>Brison, J P</creatorcontrib><creatorcontrib>Prozorov, R</creatorcontrib><creatorcontrib>Olheiser, T</creatorcontrib><creatorcontrib>Giannetta, R W</creatorcontrib><collection>PubMed</collection><collection>MEDLINE - Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fletcher, J D</au><au>Carrington, A</au><au>Diener, P</au><au>Rodière, P</au><au>Brison, J P</au><au>Prozorov, R</au><au>Olheiser, T</au><au>Giannetta, R W</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Penetration depth study of superconducting gap structure of 2H-NbSe2</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2007-02-02</date><risdate>2007</risdate><volume>98</volume><issue>5</issue><spage>057003</spage><epage>057003</epage><pages>057003-057003</pages><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>We report measurements of the temperature dependence of both in-plane and out-of-plane penetration depths (lambda(a) and lambda(c), respectively) in 2H-NbSe2. Measurements were made with a radio-frequency tunnel diode oscillator circuit at temperatures down to 100 mK. Analysis of the anisotropic superfluid density shows that a reduced energy gap is located on one or more of the quasi-two-dimensional Nb Fermi surface sheets rather than on the Se sheet, in contrast with some previous reports. This result suggests that the gap structure is not simply related to the weak electron-phonon coupling on the Se sheet and is therefore important for microscopic models of anisotropic superconductivity in this compound.</abstract><cop>United States</cop><pub>American Physical Society</pub><pmid>17358886</pmid><doi>10.1103/PhysRevLett.98.057003</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0001-7077-6224</orcidid><orcidid>https://orcid.org/0000-0002-9685-2982</orcidid><orcidid>https://orcid.org/0000-0002-2353-2742</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0031-9007
ispartof Physical review letters, 2007-02, Vol.98 (5), p.057003-057003
issn 0031-9007
1079-7114
language eng
recordid cdi_hal_primary_oai_HAL_hal_00965433v1
source American Physical Society Journals
subjects Condensed Matter
Physics
Superconductivity
title Penetration depth study of superconducting gap structure of 2H-NbSe2
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-18T12%3A23%3A36IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_hal_p&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Penetration%20depth%20study%20of%20superconducting%20gap%20structure%20of%202H-NbSe2&rft.jtitle=Physical%20review%20letters&rft.au=Fletcher,%20J%20D&rft.date=2007-02-02&rft.volume=98&rft.issue=5&rft.spage=057003&rft.epage=057003&rft.pages=057003-057003&rft.issn=0031-9007&rft.eissn=1079-7114&rft_id=info:doi/10.1103/PhysRevLett.98.057003&rft_dat=%3Cproquest_hal_p%3E70273931%3C/proquest_hal_p%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=70273931&rft_id=info:pmid/17358886&rfr_iscdi=true