26
2 What is the Work Function?: Definition and Factors …
Table 2.5
(continued)
Metal (structure) Plane Temperature coefficient of the work function
Temperature range (K)
α u
α hkl (r
c
= C)
α hkl
α hkl
vib
α u
+ α hkl
vib
Exp
(110)
0.31
0.04
−2.58
−2.91
Sn (tetr.)
(110)
−0.27
0.92
1.16
−1.45
−1.72
33.1
± 8.1 (poly) 300
≤ T
≤ 500
(100)
−0.83
−0.50
2.12
1.85
(111)
0.96
−0.04
−6.38
6.65
2 What is the Work Function?: Definition and Factors …
Table 2.5
(continued)
Metal (structure) Plane Temperature coefficient of the work function
Temperature range (K)
α u
α hkl (r
c
= C)
α hkl
α hkl
vib
α u
+ α hkl
vib
Exp
(110)
0.31
0.04
−2.58
−2.91
Sn (tetr.)
(110)
−0.27
0.92
1.16
−1.45
−1.72
33.1
± 8.1 (poly) 300
≤ T
≤ 500
(100)
−0.83
−0.50
2.12
1.85
(111)
0.96
−0.04
−6.38
6.65