TY - JOUR
T1 - Temperature evolution of the charge and spin transport in Cu/Nb interface
AU - Ishitaki, Masayuki
AU - Ohnishi, Kohei
AU - Kimura, Takashi
N1 - Funding Information:
Acknowledgments This work was partially supported by Grant-in-Aid for Scientific Research on Innovative Area, “Nano Spin Conversion Science” (26103002), that for Scientific Research (S) (25220605), that for Young Scientists (B) (17K14109), and JSPS Program for Advancing Strategic International Networks to Accelerate the Circulation of Talented Researchers.
Publisher Copyright:
© 2018 The Japan Society of Applied Physics.
PY - 2018/6
Y1 - 2018/6
N2 - The transport properties for the charge and spin currents in a normal-metal/superconductor interface have been investigated by using a nano-pillar based lateral spin valve. Owing to the efficient reduction of the Joule heating, we were able to observe the temperature and bias-current dependences of the spin transport in the Cu/Nb bilayer system. From the temperature dependence of the spin signal, the superconducting gap of the Nb in contact with Cu was found to open gradually with decreasing the temperature. We also found that the inhomogeneous superconducting property produces the significant temperature and field dependences of the background signal in the nonlocal measurement around the transition temperature.
AB - The transport properties for the charge and spin currents in a normal-metal/superconductor interface have been investigated by using a nano-pillar based lateral spin valve. Owing to the efficient reduction of the Joule heating, we were able to observe the temperature and bias-current dependences of the spin transport in the Cu/Nb bilayer system. From the temperature dependence of the spin signal, the superconducting gap of the Nb in contact with Cu was found to open gradually with decreasing the temperature. We also found that the inhomogeneous superconducting property produces the significant temperature and field dependences of the background signal in the nonlocal measurement around the transition temperature.
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U2 - 10.7567/JJAP.57.060310
DO - 10.7567/JJAP.57.060310
M3 - Article
AN - SCOPUS:85047924988
VL - 57
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 6
M1 - 060310
ER -