BEST SCIENTIFIC
RESEARCH - 2022
157
with the expression (here the model presented by Kahn for the density of states D
can be used). Using the above expression, we obtained VAX of excess currents according
to the Chaynovet model for the tunnel diode. In the Chaynovet model, the density of states
is equal to D=1 and the voltage drops under the
influence of the field are
1. 𝑽
𝒎
=
𝟎. 𝟓𝑽
, 𝟐. 𝑽
𝒎
= 𝟎. 𝟔𝑽 𝟑. 𝑽
𝒎
= 𝟎. 𝟕𝑽
, 𝟒. 𝑽
𝒎
= 𝟎. 𝟖𝑽 𝟓. 𝑽
𝒎
= 𝟏𝑽
, the volt-
ampere characteristic of the excess current in the tunnel diode was obtained according to
the Chaynovet model (Fig. 1).
Figure 1. In a germanium-based tunnel
diode
at room temperature for strong biasing
1. 𝑽
𝒌
=
𝟎. 𝟓(𝑽)
, 𝟐. 𝑽
𝒌
= 𝟎. 𝟔𝑽 𝟑. 𝑽
𝒌
= 𝟎. 𝟕𝑽
, 𝟒. 𝑽
𝒌
=
𝟎. 𝟖𝑽 𝟓. 𝑽
𝒌
= 𝟏𝑽
as a result of different electric
field Chaynovet volt-ampere characteristic for
the tunnel diode from expression (2)
taking
into account the excess current in the tunnel
diode in the model.
As a result of the influence of
the magnetic field, we give the energy dependence of the
density of states[11] at different temperatures using the following expression (2) for the
conduction and valence zones.
𝜌
𝐶
(𝐸) =
1
4𝜋
2
(
2𝑚
ℎ
2
)
3
2
ℎ𝜔
𝐻
𝑐
∑
1
√𝐸 − 𝐸
𝐶
− (𝑛 +
1
2)ℎ𝜔
𝐻
𝑐
𝑛
𝑒
0
𝑑Е
𝜌
𝑣
(𝐸) =
1
4𝜋
2
(
2𝑚
ℎ
2
)
3
2
ℎ𝜔
𝐻
𝑣
∑
1
√𝐸−𝐸
𝑣
−(𝑛+
1
2
)ℎ𝜔
𝐻
𝑣
𝑛
𝑒
0
𝑑Е
(2)
We consider the effect of magnetic field and ultra-high frequency field on the excess current
generated in the tunnel diode.
In that case, if we generalize the terms (1) and (2) given
above, we get the following expression.