Presentation Information

English Presentation

[15p-PB1-15]Modulation of Nonlocal Magnon Transport by Supercurrent

〇Tetsuma Mandokoro¹, Yoichi Shiota^1,2, Hisakazu Matsuki^1,2, Ryusuke Hisatomi^1,2, Shutaro Karube^1,2, Teruo Ono^1,2 (1.ICR, Kyoto Univ., 2.CSRN, Kyoto Univ.)

Keywords:

spintronics,magnon,superconductor

Magnons offer a low-power alternative to charge transport. Recent studies indicate that magnons in ferromagnets can excite quasiparticles in an adjacent superconductor, implying a magnon–superconductor interaction. Here, we investigate whether a supercurrent can modulate magnons. In YIG/Nb, the nonlocal magnon amplitude decreases with increasing supercurrent, whereas no modulation is observed in a control sample. These results demonstrate supercurrent-induced control of magnons.

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