Non-Hermitian Topological Magnonics - presented by Pr Tao Yu

Non-Hermitian Topological Magnonics

Pr Tao Yu

Pr Tao Yu
Slide at 28:44
Emergence of nodal magnon-photon polariton by varying dF
0,=0,d,=46.1nm
real part
photon
Kittel
FM layer-
magnon
upper branch
lower branch
photon
imaginary part
600 k
1200
k (rad/m)
1 I 2 + 16Rnwn gk 2
Sw = min (wupper
upper
lower
= Aaker upper - lower kc
2024/10/04 15:29:14
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Summary (AI generated)

In this paper, I demonstrate the exact coalescence with a film thickness of around 50 nanometers. Both the real and imaginary components are coalescent. We determine and fix the thickness of the ferromagnetic field.