Ferromagnet/superconductor

Flouquet, J. and Buzdin, A.G. Ferromagnetic Superconductors, Phys. World J.QQ2 January), http //physicsweb. org/. 

The differential resistance of mesoscopic ferromagnet/superconductor junctions shows a number of features associated with the injection of spin-polarized carriers into the superconductor. In particular, large peaks are observed at currents corresponding to the superconducting gap voltage. These peaks are... 

Domain Wall Superconductivity in Ferromagnetic Superconductors and Hybrid S/F Structures... 

Summary. On the basis of phenomenological Ginzburg-Landau approach we investigate the problem of order parameter nucleation in a ferromagnetic superconductor and hybrid superconductor - ferromagnetic (S/F) systems with a domain structure in an applied external magnetic field H. We study the interplay between the superconductivity localized at the domain walls and between the domain walls and show that such interplay determines a peculiar nonlinear temperature dependence of the upper critical field. For hybrid S/F systems we also study the possible oscillatory behavior of the critical temperature TC(H) similar to the Little-Parks effect. 

The goal of the present paper is to study the unusual nonlinear behavior of the temperature dependence of the upper critical field observed experimentally in hybrid S/F systems and ferromagnetic superconductors using the GL model. We consider a linearized GL equation which is equivalent to... 

Later, the evolution of the electronic industry initiated the development of an immense variety of materials and devises based, essentially, on the properties of semiconductor, dielectric, ferromagnetic, superconductor, and ferroelectric materials. 

Keywords ferromagnetic superconductors, ferromagnetic quantum critical point, first order... 

Reentrant superconductivity is known from so-called ferromagnetic superconductors like ErRh4B4 where the ferromagnetic transition at lower temperatures actually destroys superconductivity [244]. However, the exact magnetic structure in k-(ET)2Cu[N(CN)2]C1 is still unknown and the origin of the peculiar behavior is at present subject of speculations only. 

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