Anomalous transport through the p-wave superconducting channel in the 3-K phase of Sr2rRuO4.
Using microfabrication techniques, we extracted individual channels of 3-kelvin (3-K) phase superconductivity in Sr2RuO4-Ru eutectic systems and confirmed odd-parity superconductivity in the 3-K phase, similar to pure Sr2RuO4. Unusual hysteresis in the differential resistance-current and voltage-current characteristics observed below 2 K indicates the internal degrees of freedom of the superconducting state. A possible origin of the hysteresis is current-induced chiral-domain-wall motion due to the chiral p-wave state.
Kambara
Hiroshi
H
National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan.
Kashiwaya
Satoshi
S
Yaguchi
Hiroshi
H
Asano
Yasuhiro
Y
Tanaka
Yukio
Y
Maeno
Yoshiteru
Y