ELECTRONS ON HELIUM
IF:
e-1<< 1
, Q<< 1
<z>
1
>>
a
s
ç
2D ELECTRON SYSTEM
V
V
G
V
F
d
E
Glow discharge
Guard
ring
Top plate
Electrons on
4
He
ç
Temperature
30mK<T< 1K
ç
Scattering time
t< 6
ns
ç
Mean free path
< 3
m
m
ç
Effective mass
m
*
=m
e