The integer quantum Hall effect with a superconducting contact is analyzed. It is shown that the conductance plateaus occur at σxy = 2ne /h which is double the usual value. Non-Andreev scattering at the interface and flux penetration into the superconductor are shown to not affect the result. The effect should be observable in InAs quantum wells with Nb a contact. Typeset using REVTEX 1 This pa...

We explore the effects of an applied strong external magnetic field in a three flavour massless colour superconductor. The long-range component of the B field that penetrates the superconductor enhances some quark condensates, leading to a different condensation pattern. The external field also reduces the flavour symmetries in the system, and thus it changes drastically the corresponding low e...

We analyze the chiral p-wave superconductor in the low temperature region. The superconductor has a εxpx + iεypy-wave gap in two dimensional space (2D). Near the second superconducting transition point, the system could be described by a quasi-1D chiral p-wave model in 2D. The axial anomaly occurs in such a model and causes an accumulation of the quasiparticle in an inhomogeneous magnetic field...

We find that the dependence on temperature and magnetic field of the electrical resistance of diffusive ferromagnetic nano-wires measured with superconducting electrodes changes drastically with the distance, L, between the ferromagnet/superconductor contacts, however is remarkably similar for the wires with the same L ranging from 300 nm to 1000 nm, prepared under identical conditions. The res...

Since effectively the local contact vortex velocity dependent part of the Mag-nus force in a Josephson junction array is zero in the classical limit, we predict zero classical Hall effect. In the quantum limit because of the geometric phases due to the finite superfluid density at superconductor grains, rich and complex Hall effect is found in this quantum regime due to the Thouless-Kohmoto-Nig...

We investigate the impact of electrostatics on proximity effect between a magnetic insulator and semiconductor wire in semiconductor-superconductor-magnetic hybrid structures. By performing self-consistent Schr$\ddot{\rm o}$dinger-Poisson calculations using an effective model system, we find that large Zeeman fields consistent with emergence topological superconductivity emerge within parameter...

Although Brownian ratchets have been conceived to describe the operation of molecular motor proteins, their basic principles are also applicable to a wide range of different physical systems. In this paper I line up two such possible applications in condensed-matter physics. The first one is the removal of vortices from superconductors. Magnetic fields frequently penetrate superconducting mater...

Non-Abelian quasiparticles have been predicted to exist in a variety of condensed matter systems. Their defining property is that an adiabatic braid between two of them results in a non-trivial change of the quantum state of the system. The simplest non-Abelian quasiparticles--the Majorana bound states--can occur in one-dimensional electronic nano-structures proximity-coupled to a bulk supercon...

This paper presents the analysis, design, construction and ac test results of low voltage single-phase resistive superconductor electrical current limiters. Two different types of resistive superconductor current limiter are presented: the first one is built with three concentric, cylindrical and helicoidal coils connected in parallel and the second one is built with two superposed cylindrical ...