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

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dc.contributor.author Freitas, D. C.
dc.contributor.author Rodière, P.
dc.contributor.author Osorio, M. R.
dc.contributor.author Navarro-Moratalla, Efrén
dc.contributor.author Nemes, N. M.
dc.contributor.author Tissen, V. G.
dc.contributor.author Cario, L.
dc.contributor.author Coronado, E.
dc.contributor.author García-Hernández, M.
dc.contributor.author Vieira, S.
dc.contributor.author Núñez-Regueiro, M.
dc.contributor.author Suderow, Hermann J.
dc.contributor.other UAM. Departamento de Física de la Materia Condensada es_ES
dc.date.accessioned 2017-03-15T13:47:28Z
dc.date.available 2017-03-15T13:47:28Z
dc.date.issued 2016-05-24
dc.identifier.citation Physical Review B - Condensed Matter and Materials Physics 93.18 (2016): 184512 en_US
dc.identifier.issn 2469-9950 (print) es_ES
dc.identifier.issn 2469-9969 (online) es_ES
dc.identifier.uri http://hdl.handle.net/10486/677592
dc.description.abstract We 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 range en_US
dc.description.sponsorship D.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 MINECO en_US
dc.format.extent 6 pag. es_ES
dc.format.mimetype application/pdf en
dc.language.iso eng en
dc.publisher American Physical Society en_US
dc.relation.ispartof Physical Review B - Condensed Matter and Materials Physics en_US
dc.rights © 2016 American Physical Society en_US
dc.subject.other Superconductivity en_US
dc.subject.other Charge-density-wave states en_US
dc.title Strong enhancement of superconductivity at high pressures within the charge-density-wave states of 2H-TaS2 and 2H-TaSe2 en_US
dc.type article en
dc.subject.eciencia Física es_ES
dc.relation.publisherversion http://dx.doi.org/10.1103/PhysRevB.93.184512 es_ES
dc.identifier.doi 10.1103/PhysRevB.93.184512 es_ES
dc.identifier.publicationfirstpage 184512 es_ES
dc.identifier.publicationissue 18 es_ES
dc.identifier.publicationlastpage 184512 es_ES
dc.identifier.publicationvolume 93 es_ES
dc.relation.projectID Gobierno de España. FIS2014-54498-R es_ES
dc.relation.projectID Gobierno de España. MDM-2014-0377 es_ES
dc.relation.projectID Gobierno de España. MDM-2015-0538 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/604391 es_ES
dc.relation.projectID Comunidad de Madrid. S2013/MIT-2850/NANOFRONTMAG es_ES
dc.relation.projectID Gobierno de España. MAT-2014-56143-R es_ES
dc.type.version info:eu-repo/semantics/publishedVersion en
dc.rights.accessRights openAccess en
dc.authorUAM Suderow Rodríguez, Hermann Jesús (281163)


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