Generation of Circulating Cavity Magnon Polaritons

被引：16

作者：

Bourhill, Jeremy ^{[1
]}

Yu, Weichao ^{[2
,3
]}

Vlaminck, Vincent ^{[4
,5
]}

Bauer, Gerrit E. W. ^{[6
,7
,8
]}

Ruoso, Giuseppe ^{[9
]}

Castel, Vincent ^{[4
,5
]}

机构：

[1] Univ Western Australia, Dept Phys, Quantum Technol & Dark Matter Res Lab, 35 Stirling Highway, Crawley, WA 6009, Australia

[2] Fudan Univ, Inst Nanoelect Devices & Quantum Comp, State Key Lab Surface Phys, Shanghai 200433, Peoples R China

[3] Fudan Univ, Zhangjiang Fudan Int Innovat Ctr, Shanghai 201210, Peoples R China

[4] Technopole Brest Iroise, IMT Atlantique, CS 83818, F-29238 Brest 3, France

[5] Technopole Brest Iroise, Lab Sci & Technol Informat, Commun & Connaissance,UMR 6285, CNRS, CS 83818, F-29238 Brest 3, France

[6] Tohoku Univ, Adv Inst Mat Res AIMR & Inst Mat Res IMR, World Premier Int Res Ctr Initiat WPI, Sendai 9808577, Japan

[7] Univ Chinese Acad Sci, Kavli Inst Theoret Sci, Beijing, Peoples R China

[8] Univ Groningen, Zernike Inst Adv Mat, NL-9700 Groningen, Netherlands

[9] Univ Chinese Acad Sci, Kavli Inst Theoret Sci, Beijing, Peoples R China

来源：

PHYSICAL REVIEW APPLIED | 2023年 / 19卷 / 01期

基金：

澳大利亚研究理事会; 日本学术振兴会;

关键词：

701.1 Electricity: Basic Concepts and Phenomena - 711 Electromagnetic Waves - 931.3 Atomic and Molecular Physics;

D O I：

10.1103/PhysRevApplied.19.014030

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We experimentally realize circularly polarized unidirectional cavity magnon polaritons in a torus -shaped microwave cavity loaded by a small magnetic sphere. At special positions, the clockwise and counterclockwise modes are circularly polarized, such that only one of them couples to the magnet, which breaks the mode degeneracy. We reveal the chiral nature of the spectral energy and angular-momentum flow by observing and modeling nonreciprocities of the microwave scattering matrix.

引用

页数：8

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