Temperature evolution of the charge and spin transport in Cu/Nb interface

Masayuki Ishitaki, Kohei Ohnishi, Takashi Kimura

研究成果: Contribution to journalArticle査読


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.

ジャーナルJapanese Journal of Applied Physics
出版ステータス出版済み - 6 2018

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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