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dc.contributor.authorRosenstein, Baruchen_US
dc.contributor.authorShapiro, B. Ya.en_US
dc.contributor.authorLi, Dingpingen_US
dc.contributor.authorShapiro, I.en_US
dc.date.accessioned2018-08-21T05:53:32Z-
dc.date.available2018-08-21T05:53:32Z-
dc.date.issued2018-04-12en_US
dc.identifier.issn2469-9950en_US
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevB.97.144510en_US
dc.identifier.urihttp://hdl.handle.net/11536/144829-
dc.description.abstractSuperconductivity was observed in certain range of pressure and chemical composition in Weyl semimetals of both type I and type II (when the Dirac cone tilt parameter kappa > 1). Magnetic properties of these superconductors are studied on the basis of microscopic phonon-mediated pairing model. The Ginzburg-Landau effective theory for the order parameter is derived using the Gorkov approach and used to determine anisotropic coherence length, the penetration depth determining the Abrikosov parameter for a layered material and applied to recent extensive experiments on MoTe2. It is found that superconductivity is of second kind near the topological transition at kappa = 1. For a larger tilt parameter, superconductivity becomes first kind. For kappa < 1, the Abrikosov parameter also tends to be reduced, often crossing over to the first kind kappa For the superconductors of the second kind, the dependence of critical fields H-c2 and H-c1 on the tilt parameter. (governed by pressure) is compared with the experiments. Strength of thermal fluctuations is estimated and it is found that they are strong enough to cause Abrikosov vortex lattice melting near H-c2. The melting line is calculated and is consistent with experiments provided the fluctuations are three dimensional in the type-I phase (large pressure) and two dimensional in the type-II phase (small pressure).en_US
dc.language.isoen_USen_US
dc.titleMagnetic properties of type-I and type-II Weyl semimetals in the superconducting stateen_US
dc.typeArticleen_US
dc.identifier.doi10.1103/PhysRevB.97.144510en_US
dc.identifier.journalPHYSICAL REVIEW Ben_US
dc.citation.volume97en_US
dc.contributor.department電子物理學系zh_TW
dc.contributor.departmentDepartment of Electrophysicsen_US
dc.identifier.wosnumberWOS:000429774100006en_US
Appears in Collections:Articles