33 citations · 76 across the 6 of their papers we have counts for
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Quantitative analysis of the critical current due to vortex pinning by surface corrugation
Alain Pautrat, J. Scola, C. Goupil +6
The transport critical current of a Niobium (Nb) thick film has been measured for a large range of magnetic field. Its value and variation are quantitatively described in the frame…
Peak-effect and surface crystal-glass transition for surface-pinned vortex array
B. Placais, N. Lutke-Entrup, J. Bellessa +3
The peak effect has been investigated in clean Nb crystals with artificially corrugated surfaces by measuring the linear surface impedance in the 1kHz-1MHz frequency range. From a…
Anisotropy of flux-flow resistivity in UPt3
N. Lutke-Entrup, R. Blaauwgeers, B. Placais +5
The ac prenetration depth, λ_ac(T,H,f), has been measured in superconducting UPt3 single crystals for H\parallel c and H\perp c in the range f=0.01-1MHz and T=0.1-0.4 K. The contri…
rf-studies of vortex dynamics in isotropic type-II superconductors
N. Lutke-Entrup, B. Placais, P. Mathieu +1
We have measured the surface impedance of thick superconductors in the mixed state over a broad 2 kHz - 20 MHz frequency range. The depinning cross-over is observed; but it is much…
Depinning transition in type-II superconductors
N. Lutke-Entrup, B. Placais, P. Mathieu +1
The surface impedance Z(f) of conventional isotropic materials has been carefully measured for frequencies f ranging from 1 kHz to 3 MHz, allowing a detailed investigation of the d…