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7 papers · 2 filters
Magnon-assisted Andreev reflection in a ferromagnet-superconductor junction
Edward McCann, Vladimir I. Fal'ko
We study subgap transport in a ferromagnet-superconductor junction at low temperature due to Andreev reflection. The mismatch of spin polarized current in the ferromagnet and spinl…
Measurement of the energy dependence of phase relaxation by single electron tunneling
P. König, J. Könemann, T. Schmidt +3
Single electron tunneling through a single impurity level is used to probe the fluctuations of the local density of states in the emitter. The energy dependence of quasi-particle r…
Weak localization correction to the FS interface resistance
Edward McCann, Vladimir. I. Fal'ko, A. F. Volkov +1
The classical resistance of a contact between a ferromagnet (F) and a superconductor (S) acquires an additional contact term as compared to the contact between a ferromagnet and a…
Energy Dependence of Quasi-Particle Relaxation in a Disordered Fermi Liquid
T. Schmidt, P. König, E. McCann +2
A spectroscopic method is applied to measure the inelastic quasi-particle relaxation rate in a disordered Fermi liquid. The quasi-particle relaxation rate, is deduced from the…
Enhancement of GMR due to spin-mixing in magnetic multilayers with a superconducting contact
F. Taddei, S. Sanvito, C. J. Lambert
We study the Giant Magnetoresistance (GMR) ratio in magnetic multiayers with a single superconducting contact in the presence of spin-mixing processes. It has been recently shown t…
Electron - hole asymmetry and activation energy in quantum Hall ferromagnets
Vladimir I. Fal'ko, S. V. Iordanski
We argue that the dissipative transport in ferromagnetic quantum Hall effect liquids at is dominated by the thermal activation of pairs consisting of an electron and an an…