Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | 유천열 | - |
| dc.contributor.author | Jin-A Kim | - |
| dc.date.accessioned | 2022-03-07T16:00:26Z | - |
| dc.date.available | 2022-03-07T16:00:26Z | - |
| dc.date.issued | 2022 | - |
| dc.identifier.uri | http://dgist.dcollection.net/common/orgView/200000596416 | en_US |
| dc.identifier.uri | http://hdl.handle.net/20.500.11750/16300 | - |
| dc.description | Spin-orbit torque, field-free switching, symmetry breaking, miscut | - |
| dc.description.statementofresponsibility | N | - |
| dc.description.tableofcontents | I. INTRODUCTION 1 II. THEORETICAL BACKGROUND 3 2.1 Spin-orbit Torque (SOT) 3 2.2 Spin-transfer torque (STT) and Spin-orbit torque (SOT) based magnetization switching 5 2.3 Field-free Spin-orbit Torque Switching 6 2.4 Sapphire Miscut Substrate 8 2.5 Magnetic Anisotropy 9 2.5.1 Shape Anisotropy (Demagnetization) 10 2.5.2 Magnetocrystalline Anisotropy 11 2.5.3 Zeeman energy 11 III. MATERIALS & METHODS 14 3.1 Film deposition and patterning 15 3.1.1 Magnetron Sputtering 16 3.1.2 Photolithography 17 3.1.3 Etching 20 3.2 Magnetic Property Measurement 21 3.2.1 Vibrational Sample Magnetometer (VSM) 21 3.2.2 Anomalous Hall effect (AHE) Magnetometry 22 3.2.3 Generalized Sucksmith-Tompson (GST) method 26 3.2.4 Separation of AHE and Planar Hall effect(PHE) 27 3.3 SOT measurement 28 3.3.1 Harmonic Hall voltage measurement 29 3.3.2 Current Induced Magnetization Switching 30 IV. RESULTS & DISCUSSION 32 4.1 Substrate Surface Evaluation 32 4.2 Magnetic properties 35 4.3 Additional In-plane Magnetic Anisotropy by Miscut Sapphire Substrate 37 4.4 Current Induced Magnetization Switching by SOT 40 4.5 Field-free Switching by SOT 46 V. CONCLUSION 49 |
- |
| dc.format.extent | 53 | - |
| dc.language | eng | - |
| dc.publisher | DGIST | - |
| dc.subject | Spin-orbit torque, field-free switching, symmetry breaking, miscut | - |
| dc.title | Lateral symmetry breaking for spin-orbit torque induced field-free switching using miscut sapphire substrate | - |
| dc.title.alternative | 미스컷 사파이어 기판을 사용하여 스핀 궤도 토크 기반의 무자기장 스위칭을 위한 수평 대칭 깨짐 유도 | - |
| dc.type | Thesis | - |
| dc.identifier.doi | 10.22677/thesis.200000596416 | - |
| dc.description.degree | Master | - |
| dc.contributor.department | Emerging Materials Science | - |
| dc.contributor.coadvisor | Jung-Il Hong | - |
| dc.date.awarded | 2022/02 | - |
| dc.publisher.location | Daegu | - |
| dc.description.database | dCollection | - |
| dc.citation | XT.MM 김78 202202 | - |
| dc.date.accepted | 1/21/22 | - |
| dc.contributor.alternativeDepartment | 신물질과학전공 | - |
| dc.embargo.liftdate | 20250228 | - |
| dc.contributor.affiliatedAuthor | Chun-Yeol You | - |
| dc.contributor.affiliatedAuthor | Jung-Il Hong | - |
| dc.contributor.affiliatedAuthor | Jin-A Kim | - |
| dc.contributor.alternativeName | 김진아 | - |
| dc.contributor.alternativeName | Chun-Yeol You | - |
| dc.contributor.alternativeName | 홍정일 | - |
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