Fitting Drude-Lindhard parameters for Co
i ai ωpi γi

1

9.0500E-03

0.185

9.913

2

-3.4610E-02

7.069

2.515

3

9.7450E-02

8.627

3.287

4

-2.5730E-02

9.575

5.290

5

-6.4100E-03

10.159

0.534

6

-1.6182E-01

12.639

39.083

7

1.1388E-01

12.867

5.316

8

-2.3020E-02

12.910

2.170

9

-1.6364E-01

14.766

10.077

10

1.4981E-01

19.263

13.030

11

6.2400E-03

22.693

2.753

12

1.5160E-02

37.472

8.812

13

-1.5070E-02

38.968

7.034

14

9.2314E-01

47.582

128.422

15

3.6464E-04

48.876

3.436

16

-2.6096E-01

59.535

27.481

17

-1.7345E-01

60.672

6.565

18

1.6766E-01

60.790

6.298

19

2.2272E-01

61.785

23.727

20

1.4200E-03

102.266

5.775

21

-6.6216E-04

105.609

6.622

22

8.3501E-04

131.626

15.372

23

-2.9865E-04

170.246

8.473

24

-4.1331E-04

691.107

493.503

25

-1.3884E-04

746.123

76.220

26

7.7429E-05

783.398

32.359

27

5.4418E-04

836.373

192.647

28

2.1797E-04

1001.679

202.363

29

4.3347E-05

1206.646

198.211

30

7.4114E-05

1331.960

300.098

31

3.4866E-05

1672.419

334.681



References of fitted experimental data for Co

Incident photon
energy range (eV)

Fitted optical
constants

Source of data

0.4-6.6

n, k

Interpolation

6.6-35.4

n, k

C. Wehenkel and B. Gauthe, Phys. Status Solidi B 64, 515 (1974)

38.8-200

n, k

B. Sonntag et al., Solid State Commun. 7, 597 (1969)

200-2000

n, k

B. Henke, Am. Inst. Phys. Conf. Proc. 75, 146 (1981)