Pressure dependence of superconducting critical temperature and upper critical field of 2H-NbS2
Entity
UAM. Departamento de Física de la Materia CondensadaDate
2013-04-03Citation
10.1103/PhysRevB.87.134502
Physical Review B 87.13 (2013): 134502
ISSN
1098-0121 (print); 1550-235X (online)DOI
10.1103/PhysRevB.87.134502Funded by
This work was supported by Spanish MINECO (Consolider-Ingenio CSD2007-00010 and CSD2009-00013 programs, SAB2009-0057, FIS2011-23488, and MAT2011-27470-C02-02), by the Comunidad de Madrid through program Nanobiomagnet, and by NanoSc-COST programProject
Gobierno de España. CSD2007-00010; Gobierno de España. CSD2009-00013; Gobierno de España. SAB2009-0057; Gobierno de España.FIS2011-23488; Comunidad de Madrid. 2009/MAT1726/NANOBIOMAGNET; Gobierno de España. MAT2011-27470-C02-02Editor's Version
http://dx.doi.org/ 10.1103/PhysRevB.87.134502Subjects
FísicaRights
© 2013 American Physical SocietyAbstract
We present measurements of the superconducting critical temperature T c and upper critical field Hc2 as a function of pressure in the transition metal dichalcogenide 2H-NbS2 up to 20 GPa. We observe that Tc increases smoothly from 6 K at ambient pressure to about 8.9 K at 20 GPa. This range of increase is comparable to the one found previously in 2H-NbSe2. The temperature dependence of the upper critical field Hc2(T) of 2H-NbS2 varies considerably when increasing the pressure. At low pressures, Hc2(0) decreases, and at higher pressures both Tc and Hc2(0) increase simultaneously. This points out that there are pressure induced changes of the Fermi surface, which we analyze in terms of a simplified two-band approach
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Google Scholar:Tissen, V. G.
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Osorio, M. R.
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Brison, J. P.
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Nemes, N. M.
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García-Hernández, M.
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Cario, L.
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Rodière, P.
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Vieira Díaz, Sebastián
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Suderow Rodríguez, Hermann Jesús
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