Spin-current coherence peak in superconductor/magnet junctions

Maki Umeda, Yuki Shiomi, Takashi Kikkawa, Tomohiko Niizeki, Jana Lustikova, Saburo Takahashi, Eiji Saitoh

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


Coherence peak effects in a superconductor induced by a thermal spin current are reported. We measured inverse spin Hall effects induced by spin injection from a ferrimagnetic insulator Y3Fe5O12 into a superconductor NbN using longitudinal spin Seebeck effects. In the vicinity of the superconducting transition temperature of the NbN, a large enhancement of the spin Seebeck voltage is observed, whose sign is opposite to that for the vortex Nernst effect, but is consistent with a calculation for a coherence peak effect in the superconductor NbN.

Original languageEnglish
Article number232601
JournalApplied Physics Letters
Issue number23
Publication statusPublished - 2018 Jun 4


Dive into the research topics of 'Spin-current coherence peak in superconductor/magnet junctions'. Together they form a unique fingerprint.

Cite this