Zobrazeno 1 - 10
of 58
pro vyhledávání: '"R. Kosik"'
Publikováno v:
Journal of Computational Electronics. 20:2052-2061
We discuss boundary value problems for the characteristic stationary von Neumann equation (stationary sigma equation) and the stationary Wigner equation in a single spatial dimension. The two equations are related by a Fourier transform in the non-sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a223dae4f55b8eb8b3b69a7b70f7c6f7
https://doi.org/10.1007/s10825-021-01800-w
https://doi.org/10.1007/s10825-021-01800-w
Publikováno v:
Journal of Computational Electronics. 20:2104-2110
The Wigner formalism is a convenient way of describing quantum mechanical effects through a framework of distribution functions in phase space. Currently, there are stochastic and deterministic approaches in use. In our deterministic method, the crit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76b2ab2f549147e660d16d6df8b06b23
https://doi.org/10.1007/s10825-021-01801-9
https://doi.org/10.1007/s10825-021-01801-9
Publikováno v:
2020 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD).
Quantum electron transport in modern semiconductor devices can be described by a Wigner equation which is formally similar to the classical Liouville equation. The stationary Wigner equation has a singularity at zero momentum (k=0). In order to get a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f356e47e55f4b6225e713579854ea073
https://doi.org/10.23919/sispad49475.2020.9241624
https://doi.org/10.23919/sispad49475.2020.9241624
Publikováno v:
Large-Scale Scientific Computing ISBN: 9783030410315
LSSC
LSSC
The Wigner equation describing stationary quantum transport has a singularity at the point \(k=0\). Deterministic solution methods usually deal with the singularity by just avoiding that point in the mesh (e.g., Frensley’s method). Results from suc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7da324b016f53bb206c8c7118c92ed27
https://doi.org/10.1007/978-3-030-41032-2_46
https://doi.org/10.1007/978-3-030-41032-2_46
Autor:
Michael Waltl, R. Kosik, Tibor Grasser, Wolfgang Goes, Yannick Wimmer, B. Kaczer, Al-Moatasem El-Sayed, Alexander L. Shluger, Gregor Pobegen, Hans Reisinger, Gerhard Rzepa
Publikováno v:
2015 IEEE International Electron Devices Meeting (IEDM).
The negative bias temperature instability (NBTI) in pMOS transistors is typically assumed to consist of a recoverable (R) and a so-called permanent (P) component. While R has been studied in great detail, the investigation of P is much more difficult
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87f243f7ac946b0a62a2a0130794c06b
https://doi.org/10.1109/iedm.2015.7409739
https://doi.org/10.1109/iedm.2015.7409739
Autor:
R. Kosik, Tibor Grasser, Hans Kosina, Bernd Meinerzhagen, Christoph Jungemann, Siegfried Selberherr
Publikováno v:
Journal of Computational Electronics. 3:183-187
Macroscopic transport models derived from Boltzmann’s equation by using the method of moments are often used to efficiently evaluate the electrical behavior of semiconductor devices. The most commonly used model is the drift-diffusion model which c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf98e2d2845174054ad02631a0dd2f6f
https://doi.org/10.1007/s10825-004-7041-1
https://doi.org/10.1007/s10825-004-7041-1
Akademický článek
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Publikováno v:
Microelectronic Engineering. 63:199-203
We present a kinetic equation which is obtained after a hierarchy of approximations from the generalized electron-phonon Wigner function. The equation accounts for quantum effects in the electron-phonon interaction which are investigated by numerical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37cdfcea45be23581fdf62ee1d6b7950
https://doi.org/10.1016/s0167-9317(02)00625-1
https://doi.org/10.1016/s0167-9317(02)00625-1
Publikováno v:
Journal of Computational Electronics. 1:27-31
We present a kinetic equation which is obtained after a hierarchy of approximations from the generalized Wigner function equation which accounts for interaction with phonons. The equation treats the coherent part of the transport imposed by the nanos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1774500f936a3332d78af0bc048edf2
https://doi.org/10.1023/a:1020799224110
https://doi.org/10.1023/a:1020799224110
Publikováno v:
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems. 19:1233-1240
The maximum principle is the most important property of solutions to diffusion equations. Violation of the maximum principle by the applied discretization scheme is the cause for severe numerical instabilities: the emergence of negative concentration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffafbac15ebcb03bbc8263c23b3621f0
https://doi.org/10.1109/43.892848
https://doi.org/10.1109/43.892848