One-dimensional model for BiS2 superconductivity: analyzing the pressure effect over Tc

[摘要] The recently synthesized compound SrFBiS2[Lei H et al. 2013 Inorg. Chem. 52 106851] has been shown to become superconducting [Lin X et al. 2013 Phys. Rev. B 87 020504] through the substitution of Sr2+by La3+. In addition, application of moderate hydrostatic pressure in Sr0.5RE0.5FBiS2(RE=Ce, Nd, Pr, and Sm) [Jha R et al. 2015 J. Appl. Phys. 117 013901] has shown a dramatic increase in the superconducting transition temperature Tc. In this work, using a recently proposed one-dimensional model for BiS2-based superconductors [Griffith M A et al. 2015 submitted to Phys. Rev. B], the authors analyze the effect of pressure over Tc.

[发布机构] Centro Brasileiro de Pesquisas Flsicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, RJ; 22290-180, Brazil^1;Department of Physics and Astronomy, University of British Columbia, Vancouver; BC; V6T 1Z1, Canada^2;Quantum Matter Institute, University of British Columbia, Vancouver; BC; V6T 1Z4, Canada^3;Department of Physics, Oakland University, Rochester; MI; 48309, United States^4

[关键词] Effect of pressure;One-dimensional model