Looking for intertype superconductivity
It is textbook knowledge that superconductors are type II/type I if the Ginzburg Landau parameter kappa is larger/lower than the critical value 1/sqrt(2). However, this applies for materials deep in type I or type II phases, but for kappa~1/sqrt(2), superconductivity is predicted to be non-standard and not described within the conventional type-I/type-II dichotomy. Here we propose to investigate these non-conventional phases, which can show competition between vortex clusters, magnetic domains, but also giant multiquanta vortices which have never been observed in a bulk sample. Very small angle neutron scattering is the dedicated probe that can give access to the different phases.
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PAUTRAT Alain; BRULET Annie; CUBITT Robert; FASANO Yanina and SIMON Charles. (2019). Looking for intertype superconductivity. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-42-518
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