講演情報
[16p-D61-8]Enhanced non-linear growth of magnon transconductance in a Bi-doped YIG with a perpendicular anisotropy
〇河野 竜平1、Kyongmo An1、Eric Clot1、Vladimir Naletov1、Nicolas Thiery1、Laurent Vila1、Richard Schlitz2、Nathan Beaulieu3、Jamal Ben Youssef3、Abdelmadjid Anane4、Vincent Cros4、Hugo Merbouche4、Thomas Hauet5、Vlad Demidov6、Sergej Demokritov6、Gregoire de Leubens4、Olivier Klein1 (1.グルノーブル・アルプ大、2.スイス連邦工科大学チューリッヒ校、3.ブルターニュ・オキシダンタル大、4.パリ・サクレー大、5.ロレーヌ大、6.ミュンスター大)
キーワード：
マグノニクス、スピン波、YIG
Spin wave, or its quanta magnon, is expected to be an efficient information carrier flowing in an insulating media alternative to electrical charge current that has Joule loss. To realize functional magnonic circuits, non-linear transport behavior of magnons is essential considering that semiconductor diodes revolutionized our society. In fact, magnons do show such behavior, however it suffers from an intrinsic limitation, i.e., a saturation of non-linear growth of magnon transconductance due to magnon-magnon scattering process, as we reported in the previous JSPS meeting (19a-A201-2). Using non-local devices consisting of two parallel Pt electrodes deposited on (Bi-doped) YIG films, we experimentally report two times more enhancement of non-linear growth of magnon transconductance in a Bi-doped YIG with a perpendicular anisotropy compared to that in a normal YIG.
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