Cavity spintronics: An early review of recent progress in the study of magnon–photon level repulsion

M Harder, CM Hu - Solid State Physics, 2018 - Elsevier
Light–matter interactions lie at the heart of condensed matter physics, providing physical
insight into material behavior while enabling the design of new devices. Perhaps this is most …

Level attraction due to dissipative magnon-photon coupling

M Harder, Y Yang, BM Yao, CH Yu, JW Rao, YS Gui… - Physical review …, 2018 - APS
We report dissipative magnon-photon coupling caused by the cavity Lenz effect, where the
magnons in a magnet induce a rf current in the cavity, leading to a cavity backaction that …

Unconventional singularity in anti-parity-time symmetric cavity magnonics

Y Yang, YP Wang, JW Rao, YS Gui, BM Yao, W Lu… - Physical Review Letters, 2020 - APS
By engineering an anti-parity-time (anti-PT) symmetric cavity magnonics system with precise
eigenspace controllability, we observe two different singularities in the same system. One …

Coherent and dissipative cavity magnonics

M Harder, BM Yao, YS Gui, CM Hu - Journal of Applied Physics, 2021 - pubs.aip.org
Strong interactions between magnetic materials and electrodynamic cavities mix together
spin and photon properties, producing unique hybridized behavior. The study of such …

Synchronized spin-photon coupling in a microwave cavity

VL Grigoryan, K Shen, K **
M Harder, L Bai, P Hyde, CM Hu - Physical Review B, 2017 - APS
We experimentally examine the topological nature of a strongly coupled spin-photon system
induced by dam**. The presence of both spin and photonic losses results in a non …

Generation of circulating cavity magnon polaritons

J Bourhill, W Yu, V Vlaminck, GEW Bauer, G Ruoso… - Physical Review …, 2023 - APS
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 …

Phase dependence of resonant and antiresonant two-photon excitations

L Drescher, T Witting, O Kornilov, MJJ Vrakking - Physical Review A, 2022 - APS
Measurements of the phase of two-photon matrix elements are presented for resonant and
antiresonant two-color ionization of helium. A tunable, narrow-bandwidth, near-infrared …

Level attraction and level repulsion of magnon coupled with a cavity anti-resonance

JW Rao, CH Yu, YT Zhao, YS Gui, XL Fan… - New Journal of …, 2019 - iopscience.iop.org
We report on coherent and dissipative coupling between a magnon mode and an anti-
resonance of transmission in a cylindrical microwave cavity. By effectively suppressing …