Table 1 Layer and charge state dependence of the CRI vibronic coupling in WS2.

From: Spin-dependent vibronic response of a carbon radical ion in two-dimensional WS2

 

Unoccupied

Occupied

 

1 ML

2 ML

1 ML

2 ML

ℏω1 (meV)

10

10

6

10

S1

0.6

0.2

0.6

0.3

ℏω2 (meV)

19

16

17

18

S2

0.7

0.4

2.2

0.9

ℏω3 (meV)

25

24

26

23

S3

5.4

2.8

0.4

0.2

ℏω4 (meV)

–

–

79

81

S4

–

–

0.7

0.2

σ (meV)

4

3

4

3

\(\bar{\epsilon }\) (meV)

515

560

−190

−210

  1. Fitted Huang–Rhys factor S, vibrational energy ℏω, Gaussian broadening σ, and the electronic defect state energy \(\bar{\epsilon }\) of the three-mode (unoccupied state) and four-mode (occupied state) electron-phonon model shown in Fig. 6. The mode with the highest coupling strength is printed in bold.
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