Chirality enables thermal magnon transistors  

作　　者：Tao Yu Chengyuan Cai Gerrit E.W.Bauer 

机构地区：[1]School of Physics,Huazhong University of Science and Technology,Wuhan 430074,China [2].WPI-AIMR and Institute for Materials Research and SCIS,Tohoku University,Sendai 980-8577,Japan [3]Kavli Institute for Theoretical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2024年第4期161-166,共6页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Key Research and Development Program of China (Grant No. 2023YFA1406600);the National Natural Science Foundation of China (Grant No. 12374109);the startup grant of Huazhong University of Science and Technology, as well as JSPS KAKENHI (Grant Nos. 19H00645, and 22H04965)

摘　　要：We report a theory of thermal spin pumping into proximity magnets under a transverse-bias-driven heat flow of magnons in magnetic films when the dipolar coupling to the magnetic gate is tuned to be “chiral”. While there is no rectification of the magnon current in the film, we predict that chirality diverts a large percentage(50% for perfect chirality) of it into the gate. This transverse thermal spin pumping effect can be controlled by rotating the film magnetization and may help manage the heat flow in future magnonic circuits.

关 键 词：MAGNON CHIRALITY quantum transport TRANSISTOR 

分 类 号：O469[理学—凝聚态物理]