Characteristics of Exciting Superconducting Magnet by Magnetic Flux Pump.

Nonlocality and Magnetic Flux Sensitivity of Superconducting Mesoscopic Aluminium Loops

We have measured the magnetoresistance and the magnetic phase boundaries T,(B) of mesoscopic superconducting structures containing an A1 loop. The structures were designed to study the nonlocal interaction between the loop and the electrical leads connected to it. Several voltage probes have been attached to the current leads to monitor the superconducting transitions of both the loop and the s...

Magnetic pinning of flux lattice in superconducting-nanomagnet hybrids

D. Perez de Lara, F. J. Castaño, B. G. Ng, H. S. Körner, R. K. Dumas, E. M. Gonzalez, Kai Liu, C. A. Ross, Ivan K. Schuller, and J. L. Vicent IMDEA-Nanociencia, Cantoblanco, Madrid 28049, Spain Departamento de Fisica de Materiales, Universidad Complutense, Madrid 28040, Spain Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge Massachusetts 02139, U...

Magnetic Flux Periodicity of h/e in Superconducting Loops

Manipulation of magnetic-flux landscapes in superconducting Bi2Sr2CaCu2O8+δ crystals

– We demonstrate experimentally that the micromagnetic profile of the out-ofplane component of magnetic induction of layered superconductors, Bz, can be manipulated by varying the in-plane magnetic field, H‖. Moving Josephson vortices, confined between layers, drag pancake vortex stacks carrying out-of-plane flux, and the magnetic profile, Bz(x), can be controllably shaped across the entire sam...

Current-flux characteristics in mesoscopic non-superconducting rings.

We propose four different mechanisms responsible for the paramagnetic or diamagnetic persistent currents in normal metal rings and determine the circumstances for changes of the current from paramagnetic to diamagnetic and vice versa. This might qualitatively reproduce the experimental results of Bluhm et al (2009 Phys. Rev. Lett. 102 136802).