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Strong enhancement of superconductivity at high pressures within the charge-density-wave states of 2H-TaS2 and 2H-TaSe2

dc.contributor.authorFreitas, D. C.
dc.contributor.authorRodière, P.
dc.contributor.authorOsorio, M. R.
dc.contributor.authorNavarro-Moratalla, Efrén
dc.contributor.authorNemes, N. M.
dc.contributor.authorTissen, V. G.
dc.contributor.authorCario, L.
dc.contributor.authorCoronado, E.
dc.contributor.authorGarcía-Hernández, M.
dc.contributor.authorVieira Díaz, Sebastián 
dc.contributor.authorNúñez-Regueiro, M.
dc.contributor.authorSuderow Rodríguez, Hermann Jesús 
dc.contributor.otherUAM. Departamento de Física de la Materia Condensadaes_ES
dc.date.accessioned2017-03-15T13:47:28Z
dc.date.available2017-03-15T13:47:28Z
dc.date.issued2016-05-24
dc.identifier.citationPhysical Review B - Condensed Matter and Materials Physics 93.18 (2016): 184512en_US
dc.identifier.issn2469-9950 (print)es_ES
dc.identifier.issn2469-9969 (online)es_ES
dc.identifier.urihttp://hdl.handle.net/10486/677592
dc.description.abstractWe present measurements of the superconducting and charge-density-wave (CDW) critical temperatures (Tc and TCDW) as a function of pressure in the transition metal dichalchogenides 2H-TaSe2 and 2H-TaS2. Resistance and susceptibility measurements show that Tc increases from temperatures below 1 K up to 8.5 K at 9.5 GPa in 2H-TaS2 and 8.2 K at 23 GPa in 2H-TaSe2. We observe a kink in the pressure dependence of TCDW at about 4 GPa that we attribute to the lock-in transition from incommensurate CDW to commensurate CDW. Above this pressure, the commensurate TCDW slowly decreases, coexisting with superconductivity within our full pressure rangeen_US
dc.description.sponsorshipD.C.F. gratefully acknowledges support from the Brazilian agencies CAPES and CNPq. This work was partially supported by the French National Research Agency through the project Subrissyme ANR-12-JS04-0003- 01 and by the Spanish MINECO (FIS2014-54498-R, MAT- 2014-56143-R, MDM-2014-0377, and MDM-2015-0538), by the Comunidad de Madrid through program Nanofrontmag, and by the European Union (Graphene Flagship Contract No. CNECT-ICT-604391 and COST MP1201 action). The susceptibility versus temperature data at high pressures, where the strong increase in Tc was first noticed, were taken by the late V. G. Tissen of the Institute of Solid State Physics, Chernogolovka, Russia, during his sabbatical stay in Madrid, which was financed by MINECOen_US
dc.format.extent6 pag.es_ES
dc.format.mimetypeapplication/pdfen
dc.language.isoengen
dc.publisherAmerican Physical Societyen_US
dc.relation.ispartofPhysical Review B - Condensed Matter and Materials Physicsen_US
dc.rights© 2016 American Physical Societyen_US
dc.subject.otherSuperconductivityen_US
dc.subject.otherCharge-density-wave statesen_US
dc.titleStrong enhancement of superconductivity at high pressures within the charge-density-wave states of 2H-TaS2 and 2H-TaSe2en_US
dc.typearticleen
dc.subject.ecienciaFísicaes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1103/PhysRevB.93.184512es_ES
dc.identifier.doi10.1103/PhysRevB.93.184512es_ES
dc.identifier.publicationfirstpage184512es_ES
dc.identifier.publicationissue18es_ES
dc.identifier.publicationlastpage184512es_ES
dc.identifier.publicationvolume93es_ES
dc.relation.projectIDGobierno de España. FIS2014-54498-Res_ES
dc.relation.projectIDGobierno de España. MDM-2014-0377es_ES
dc.relation.projectIDGobierno de España. MDM-2015-0538es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7/604391es_ES
dc.relation.projectIDComunidad de Madrid. S2013/MIT-2850/NANOFRONTMAGes_ES
dc.relation.projectIDGobierno de España. MAT-2014-56143-Res_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dc.rights.accessRightsopenAccessen
dc.authorUAMSuderow Rodríguez, Hermann Jesús (281163)
dc.facultadUAMFacultad de Ciencias
dc.institutoUAMInstituto Universitario de Ciencia de Materiales Nicolás Cabrera (INC)
dc.institutoUAMCentro de Investigación en Física de la Materia Condensada (IFIMAC)


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