Publications
Detailed Information
A Deterministic Solution of the Wigner Transport Equation with Infinite Correlation Length : 무한한 상관길이를 가지는 위스너 수송 방정식의 결정론적 해
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 최우영 | - |
dc.contributor.author | 김경연 | - |
dc.date.accessioned | 2022-12-29T07:37:56Z | - |
dc.date.available | 2022-12-29T07:37:56Z | - |
dc.date.issued | 2022 | - |
dc.identifier.other | 000000173239 | - |
dc.identifier.uri | https://hdl.handle.net/10371/187711 | - |
dc.identifier.uri | https://dcollection.snu.ac.kr/common/orgView/000000173239 | ko_KR |
dc.description | 학위논문(박사) -- 서울대학교대학원 : 공과대학 전기·정보공학부, 2022. 8. 최우영. | - |
dc.description.abstract | We propose a new discrete formulation of the Wigner transport equation (WTE) with infinite correlation length of potentials. Since the maximum correlation length is not limited to a finite value, there is no uncertainty in the simulation results, and Wigner-Weyl transformation is unitary in our expression. For general and efficient simulation, the WTE is solved self-consistently with the Poisson equation through the finite volume method and the fully coupled Newton-Raphson scheme. By applying the proposed model to resonant tunneling diodes and double gate MOSFET, transient and steady-state simulation results including scattering effects are shown. | - |
dc.description.abstract | 본 연구에서는 무한한 상관 길이를 가지는 위그너 수송 방정식의 새로운 수치해석적 풀이법을 제시하였다. 최대 상관 길이가 한정된 값으로 제한되지 않기 때문에, 시뮬레이션 결과에 불확실성이 발생하지 않으며, 제안된 표현법에서는 Wigner-Weyl 변환이 unitary하다. 일반적이고 효율적인 시뮬레이션을 위해, 위그너 수송 방정식을 푸아송 방정식과 유한 체적법과 뉴턴-랩슨 방식을 통해 self-consistent하게 풀었다. 제안된 모델을 resonant tunneling diode와 double gate MOSFET에 적용하여, 산란효과를 고려한 동적 그리고 정적 시뮬레이션 결과를 보여주었다. | - |
dc.description.tableofcontents | Chapter 1 Introduction 1
1-1 Various models for device simulation 1 1-2 Numerical problems in solving WTE 5 Chapter 2 Simulation methods 10 2-1 WTE with infinite correlation length 10 2-2 Numerical Methods 13 2-3 Multi-dimensional Simulation Methods 23 Chapter 3 Simulation methods 26 2-1 Simulation results according to the correlation length 26 2-2 Simulation for resonant tunneling diode 30 2-3 Simulation for double gate MOSFET 51 Chapter 4 Conclusion 70 Appendix 72 A-1 Numerical integration method of the nonlocal potential terms 72 A-2 2D electron density and electric potential results 75 A-3 Wigner function for each subband 78 References 85 Abstract 92 | - |
dc.format.extent | iii, 93 | - |
dc.language.iso | eng | - |
dc.publisher | 서울대학교 대학원 | - |
dc.subject | Wignerequation | - |
dc.subject | Quantumtransport | - |
dc.subject | TCAD | - |
dc.subject | 위그너방정식 | - |
dc.subject | 양쟈전송 | - |
dc.subject | 티캐드(TCAD)시뮬레이션 | - |
dc.subject.ddc | 621.3 | - |
dc.title | A Deterministic Solution of the Wigner Transport Equation with Infinite Correlation Length | - |
dc.title.alternative | 무한한 상관길이를 가지는 위스너 수송 방정식의 결정론적 해 | - |
dc.type | Thesis | - |
dc.type | Dissertation | - |
dc.contributor.AlternativeAuthor | Kyoung Yeon Kim | - |
dc.contributor.department | 공과대학 전기·정보공학부 | - |
dc.description.degree | 박사 | - |
dc.date.awarded | 2022-08 | - |
dc.identifier.uci | I804:11032-000000173239 | - |
dc.identifier.holdings | 000000000048▲000000000055▲000000173239▲ | - |
- Appears in Collections:
- Files in This Item:
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.