For the simulation of state-of-the-art devices, hydrodynamic and energy transport models account for nonlocal effects. Although these models have been available for several decades, there are still unresolved issues. One of these issues is the occurrence of spurious peaks in the velocity profile which are inherent to both Stratton’s [Phys. Rev. 126, 2002 (1962)] and Blo/tekjær’s [IEEE Trans.Electron Devices 17, 38 (1970)] models. We investigate the origin of these peaks by introducing relaxation times, mobilities, and closure relations directly from a coupled Monte Carlo simulator. From these simulations, we conclude that the spurious peaks are a direct result of the truncation of the infinite moment series and the inaccuracies in the physical models.

1.
K.
Blo/tekjær
,
IEEE Trans. Electron Devices
17
,
38
(
1970
).
2.
R.
Stratton
,
Phys. Rev.
126
,
2002
(
1962
).
3.
T.-W.
Tang
and
H.
Gan
,
IEEE Trans. Electron Devices
47
,
1726
(
2000
).
4.
D. Chen, E. Sangiorgi, M. R. Pinto, E. C. Kan, U. Ravaioli, and R. W. Dutton, in Proceedings of the NUPAD IV (IEEE, Seattle, Washington, 1992), pp. 109–114.
5.
T.-W.
Tang
,
S.
Ramaswamy
, and
J.
Nam
,
IEEE Trans. Electron Devices
40
,
1469
(
1993
).
6.
G. Wolokin and J. Frey, in Proc. NASECODE VIII (James & James Science Publishers, Vienna, 1992), pp. 107–108.
7.
S.-C.
Lee
and
T.-W.
Tang
,
Solid-State Electron.
35
,
561
(
1992
).
8.
M.
Stettler
,
M.
Alam
, and
M.
Lundstrom
,
IEEE Trans. Electron Devices
40
,
733
(
1993
).
9.
T.
Grasser
,
H.
Kosina
,
M.
Gritsch
, and
S.
Selberherr
,
J. Appl. Phys.
90
,
2389
(
2001
).
10.
T.
Bordelon
,
X.-L.
Wang
,
C.
Maziar
, and
A.
Tasch
,
Solid-State Electron.
35
,
131
(
1992
).
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