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Table 1 Input data for ZnGeP2

From: Dispersion of Phonon Surface Polaritons in ZnGeP2: Anisotropy and Temperature Impacts

 

B 2 modes

4 K

300 K

ε

10.68

ε

10.04

ν L , cm−1

γ L , cm−1

ν T , cm−1

γ T , cm−1

ν L , cm−1

γ L , cm−1

ν T , cm−1

γ T , cm−1

1

362

2.0

343

1.9

361

2.1

340

3.5

2

412

2.2

403

1.1

409

2.8

400

1.8

 

E modes

4 K

300 K

ε

10.05

ε

10.04

ν L , cm−1

γ L , cm−1

ν T , cm−1

γ T , cm−1

ν L , cm−1

γ L , cm−1

ν T , cm−1

γ T , cm−1

1

205

12.0

205

16.0

203

5.7

203

6.8

2

334

5.8

329

3.6

332

4.8

328

6.2

3

378

2.4

371

0.9

375

2.1

368

0.7

4

403

1.5

388

1.1

399

2.7

385

1.3

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