Spin-current coherence peak in superconductor/magnet junctions

التفاصيل البيبلوغرافية
العنوان: Spin-current coherence peak in superconductor/magnet junctions
المؤلفون: Umeda, Maki, Shiomi, Yuki, Kikkawa, Takashi, Niizeki, Tomohiko, Lustikova, Jana, Takahashi, Saburo, Saitoh, Eiji
المصدر: Appl. Phys. Lett. 112, 232601 (2018)
سنة النشر: 2018
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Mesoscale and Nanoscale Physics
الوصف: 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 Y$_3$Fe$_5$O$_{12}$ 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.
Comment: 5 pages, 4 figures
نوع الوثيقة: Working Paper
DOI: 10.1063/1.5027456
URL الوصول: http://arxiv.org/abs/1801.07943
رقم الأكسشن: edsarx.1801.07943
قاعدة البيانات: arXiv