Fermi Energies, Fermi Temperatures, and Fermi Velocities

Numerical data from N. W. Ashcroft and N. D. Mermin, derived for a free electron gas with the free electron density of the metal to produce the table below.

Element

Fermi Energy
eV

Fermi Temperature
x 10⁴ K

Fermi Velocity
x 10⁶ m/s

Li

4.74

5.51

1.29

Na

3.24

3.77

1.07

K

2.12

2.46

0.86

Rb

1.85

2.15

0.81

Cs

1.59

1.84

0.75

Cu

7.00

8.16

1.57

Ag

5.49

6.38

1.39

Au

5.53

6.42

1.40

Be

14.3

16.6

2.25

Mg

7.08

8.23

1.58

Ca

4.69

5.44

1.28

Sr

3.93

4.57

1.18

Ba

3.64

4.23

1.13

Nb

5.32

6.18

1.37

Fe

11.1

13.0

1.98

Mn

10.9

12.7

1.96

Zn

9.47

11.0

1.83

Cd

7.47

8.68

1.62

Hg

7.13

8.29

1.58

Al

11.7

13.6

2.03

Ga

10.4

12.1

1.92

In

8.63

10.0

1.74

Tl

8.15

9.46

1.69

Sn

10.2

11.8

1.90

Pb

9.47

11.0

1.83

Bi

9.90

11.5

1.87

Sb

10.9

12.7

1.96

Numerical data from N. W. Ashcroft and N. D. Mermin,

Band Theory of Solids Fermi Energy

Index

Fermi Energy

Tables: Condensed Matter

Tables: General

HyperPhysics***** Condensed Matter R Nave

Free Electron Number Densities

Element

N/V
x10²⁸/m³

Cu

8.47

Ag

5.86

Au

5.90

Be

24.7

Mg

8.61

Ca

4.61

Sr

3.55

Ba

3.15

Nb

5.56

Fe

17.0

Mn*

16.5

Zn

13.2

Cd

9.27

Hg**

8.65

Al

18.1

Ga

15.4

In

11.5

Sn

14.8

Pb

13.2

*alpha form **at 78K

Numerical data from N. W. Ashcroft and N. D. Mermin,

Microscopic electrical properties

Index

Fermi Energy

Tables: Condensed Matter

Tables: General

HyperPhysics***** Condensed Matter R Nave