Publications
Detailed Information
Information processing duplex based on spin-waves by micromagnetics simulation : 미소자기 시뮬레이션을 통한 스핀파 기반 정보처리 듀플렉스 시스템 연구
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 김상국 | - |
dc.contributor.author | 박현규 | - |
dc.date.accessioned | 2018-05-29T03:25:11Z | - |
dc.date.available | 2018-05-29T03:25:11Z | - |
dc.date.issued | 2018-02 | - |
dc.identifier.other | 000000150541 | - |
dc.identifier.uri | https://hdl.handle.net/10371/141480 | - |
dc.description | 학위논문 (석사)-- 서울대학교 대학원 : 공과대학 재료공학부, 2018. 2. 김상국. | - |
dc.description.abstract | Duplexer is the electronic device that allows the bi-directional (duplex) communication between the receiver and the transmitter. It is also one of the circulator-derivatives whose recent research subject is size miniaturization. Spin-waves are emergent information carrier with GHz-frequency and non-Joule heating dissipation. In spin-wave circuits, the magnetic nonuniformities as well as change in wave vector make the path of spin-wave improbable. In this study, the model structure of spin-wave duplexer is proposed and studied by micromagnetics simulation, which have provided the realistic modelling of spin dynamics in numerous spin-wave studies. Combined with the halfvortex, which is the topological structure formed at the edge of magnetic film, the proposed model structure is able to guide the spin-wave in a robust and reproducible way. | - |
dc.description.tableofcontents | Chapter 1. Introduction 1
1.1. Research background 1 1.2. Background concepts 4 1.2.1. Magnetic topological defects 4 1.2.2. Magnetic nonuniformities 5 1.2.3. Duplexer 7 1.2.4. Previous three-port spin-wave systems 8 1.3. Outline of thesis 13 Chapter 2. Research Method 14 2.1. Micromagnetics simulation 14 2.1.1. Problem of micromagnetics 14 2.1.2. Two types of micromagnetics simulation packages 15 2.1.3. Finite Element MicroMagnEtics (FEMME) 17 2.1.4. Ring-down method 17 2.2. Proposal of spin-wave duplexing system 20 2.2.1. Geometry and material parameters 20 2.2.2. Possible ground states 21 2.2.3. Halfvortices in the model system 21 2.2.4. Exciting spin-waves in the model system 22 Chapter 3. Simulation Results 31 3.1. Spin-wave propagation in model systems A and B 31 3.2. Spin-wave dispersion in model systems A and B 37 3.3. Spin-wave duplex in model system A and B 41 Chapter 4. Conclusion 44 Bibliography 45 Abstract in Korean 58 | - |
dc.format | application/pdf | - |
dc.format.extent | 3361203 bytes | - |
dc.format.medium | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | 서울대학교 대학원 | - |
dc.subject | duplexer | - |
dc.subject | micromagnetics simulation | - |
dc.subject | halfvortex | - |
dc.subject.ddc | 620.1 | - |
dc.title | Information processing duplex based on spin-waves by micromagnetics simulation | - |
dc.title.alternative | 미소자기 시뮬레이션을 통한 스핀파 기반 정보처리 듀플렉스 시스템 연구 | - |
dc.type | Thesis | - |
dc.contributor.AlternativeAuthor | Park Hyeon-kyu | - |
dc.description.degree | Master | - |
dc.contributor.affiliation | 공과대학 재료공학부 | - |
dc.date.awarded | 2018-02 | - |
- 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.