27 research outputs found
Spin dynamics in a superconductor / ferromagnet proximity system
The ferromagnetic resonance of thin sputtered Ni80Fe20 films grown on Nb is
measured. By varying the temperature and thickness of the Nb the role of the
superconductivity on the whole ferromagnetic layer in these heterostructures is
explored. The change in the spin transport properties below the superconducting
transition of the Nb is found to manifest itself in the Ni80Fe20 layer by a
sharpening in the resonance of the ferromagnet, or a decrease in the effective
Gilbert damping co-efficient. This dynamic proximity effect is in contrast to
low frequency studies in these systems, where the effect of the superconductor
is confined to a small region in the ferromagnet. We interpret this in terms of
the spin pumping model.Comment: 4 pages, 4 figures, to be submitted for publicatio
A modification of the commercial ESR900 cryostat to enable three-dimensional Electron Paramagnetic Resonance studies of crystals
Biological and Soft Matter Physic
Observer-selective double electron-electron-spin resonance, a pulse sequence to improve orientation selection
Biological and Soft Matter Physic
Identification of a radical intermediate in the enzymatic reduction of oxygen by small laccase
Metals in Catalysis, Biomimetics & Inorganic MaterialsBiological and Soft Matter Physic
Novel approaches for distance determination by EPR: large anisotropy, fast relaxing paramagnetic centres, such as Fe(III), as markers
Macromolecular BiochemistryBiological and Soft Matter Physic
A Single-Crystal EPR Study at 95 GHz of the Type-2 Copper Site of Nitrite Reductase From Alcaligenes faecalis
Biological and Soft Matter Physic