Table 1 Magnon-phonon strong coupling parameters of FePSe3

From: Chirality selective magnon-phonon hybridization and magnon-induced chiral phonons in a layered zigzag antiferromagnet

 

IR (50 μm)

Raman (96 nm)

Raman(4L)

Theory

(cm−1)

ω

g

ω

g

ω

g

ω

g

Magnon (0 T)

116.8

–

115.4

–

113.2

–

111.8

–

Phonon (P1)

115.3

2.1

115.2

2.1

114.5

2.0

109.5

2.16

Phonon (P2)

115.4

2.1

115.2

2.1

114.5

2.0

112.1

2.0

  1. The mode frequencies listed in the table are for uncoupled magnons and phonons. Experimental values of the coupling parameters are extracted via diagonalization of the coupling matrix (see Supplementary Text S1). The theoretical values are from first-principle calculations. As the reduction of the sample thickness, the AFM magnon exhibits a slight red shift. The measured P1 and P2 phonons are nearly degenerate.
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