Nonlocal injection of spin current into a superconducting Nb wire

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Pure spin current injection into a superconductive Nb was demonstrated experimentally by employing a nonlocal spin absorption technique in a multiterminal lateral structure. From the reduction in spin signals, we found the absorption efficiency remained almost unchanged even after superconducting transition. The Nb/Cu interface properties were also complementarily examined by using a Nb/Cu/Nb junction incorporated in the same device, revealing superconductivity below the transition temperature. These experimental results support that the pure spin current can be absorbed into a superconductive Nb wire with almost the same efficiency as in a normal state.

Original languageEnglish
Article number192509
JournalApplied Physics Letters
Issue number19
Publication statusPublished - 2010

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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