Half-integer Shapiro steps at the 0-pi crossover of a ferromagnetic Josephson junction (2004)
Sellier, H., Baraduc, C., Lefloch, F., Calemczuk, R.
We investigate the current-phase relation of S/F/S junctions near the crossover between the 0 and the pi ground states. We use Nb/CuNi/Nb junctions where this crossover is driven both by thickness...
Andreev Reflection Enhanced Shot Noise in Mesoscopic SNS Junctions (1999)
Jehl, X., Payet-Burin, P., Baraduc, C., Calemczuk, R., Sanquer, M.
Current noise is measured with a SQUID in low impedance and transparent Nb-Al-Nb j unctions of length comparable to the phase breaking length and much longer than the thermal length. The shot noise...
SQUID based resistance bridge for shot noise measurement on low impedance samples (1999)
Jehl, X., Payet-Burin, P., Baraduc, C., Calemczuk, R., Sanquer, M.
We present a resistance bridge which uses a SQUID to measure the shot noise in low impedance samples. The experimental requirements are high DC bias currents (typically 10mA) together with high AC...