Sn doping creates 3D Fermi pockets in PbTaSe2 that open a second superconducting gap and raise Tc to 5.1 K.
Multi-band superconductors have enhanced critical temperatures
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We introduce a multi-band BCS free energy functional and prove that for a multi-band superconductor the effect of inter-band coupling can only increase the critical temperature, irrespective of its attractive or repulsive nature and its strength. Further, for weak coupling and weaker inter-band coupling, we prove that the dependence of the increase in critical temperature on the inter-band coupling is (1) linear, if there are two or more equally strongly superconducting bands, or (2) quadratic, if there is only one dominating band.
citation-role summary
background 1
citation-polarity summary
fields
cond-mat.supr-con 1years
2024 1verdicts
CONDITIONAL 1roles
background 1polarities
unclear 1representative citing papers
citing papers explorer
-
Enhancement of the superconducting transition temperature due to multiband effect in the topological nodal-line semimetal Pb$_{1-x}$Sn$_{x}$TaSe$_{2}$
Sn doping creates 3D Fermi pockets in PbTaSe2 that open a second superconducting gap and raise Tc to 5.1 K.