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Artificial tilted of spin structure of a cobalt thin film within a Co/VOx magnetic heterostructure
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dc.contributor.advisor 유천열 -
dc.contributor.author Kwonjin Park -
dc.date.accessioned 2025-02-28T21:01:29Z -
dc.date.available 2025-02-28T21:01:29Z -
dc.date.issued 2025 -
dc.identifier.uri http://hdl.handle.net/20.500.11750/58004 -
dc.identifier.uri http://dgist.dcollection.net/common/orgView/200000845463 -
dc.description Vanadium oxide (VOx), Interfacial Dzyaloshinskii-Moriya interaction (iDMI), Perpendicular magnetic anisotropy (PMA), Brillouin light scattering spectroscopy (BLS), MOKE (Magneto-optical Kerr effect) -
dc.description.tableofcontents List of Contents

Abstract i
List of contents ii
List of figures iv

I. Introduction 1

IⅠ. Theoretical backgrounds 7
2.1 Exchange interaction 7
2.1.1 Heisenberg exchange interaction 7
2.1.2 Dzyaloshinskii-Moriya interaction 9
2.2 Magnetic anisotropy energy 13
2.2.1 Magneto-crystalline anisotropy 13
2.2.2 Shape magnetic anisotropy 17
2.2.3 Interfacial magnetic anisotropy 21
2.3 The other magnetic energies 24
2.3.1 Zeeman energy· 24
2.3.2 Landau-Lifshitz-Gilbert equation 25
2.4 Spin wave 30
2.4.1 Basic concept of spin wave 30
2.4.2 Mechanism of inelastic scattered light 33
2.5 Hall effect 35

IIⅠ. Fabrication process and Experiment tools 39
3.1 Magnetic multilayer deposition 39
3.2 Experimental tools 42
3.2.1 Magneto-optical Kerr effect 42
3.2.2 SQUID-VSM measurements 45
3.2.3 Physical properties measurement system and transport measure 46
3.2.4 Transmission Electron Microscope-Electron Energy Loss Spectroscopy 47


ⅠV. Result and discussion 52
Ferromagnetism of pure vanadium oxide and their magnetic properties 53
4.1 Overview 53
4.2 Introduction 54
4.3 Experimental results and discussion 56
4.4 Summary 75

V. Result and discussion 77
Unconventional energy occurring in vanadium oxide and the ferromagnetic layer 78
5.1 Overview 78
5.2 Introduction 79
5.3 Experimental result and discussion 81
5.4 Summary 90

VI. References 92
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dc.format.extent 95 -
dc.language eng -
dc.publisher DGIST -
dc.title Artificial tilted of spin structure of a cobalt thin film within a Co/VOx magnetic heterostructure -
dc.type Thesis -
dc.identifier.doi 10.22677/THESIS.200000845463 -
dc.description.degree Doctor -
dc.contributor.department Department of Physics and Chemistry -
dc.identifier.bibliographicCitation Kwonjin Park. (2025). Artificial tilted of spin structure of a cobalt thin film within a Co/VOx magnetic heterostructure. doi: 10.22677/THESIS.200000845463 -
dc.contributor.coadvisor June-Seo Kim -
dc.date.awarded 2025-02-01 -
dc.publisher.location Daegu -
dc.description.database dCollection -
dc.citation XT.MD 박16 202502 -
dc.date.accepted 2025-01-20 -
dc.contributor.alternativeDepartment 화학물리학과 -
dc.subject.keyword Vanadium oxide (VOx), Interfacial Dzyaloshinskii-Moriya interaction (iDMI), Perpendicular magnetic anisotropy (PMA), Brillouin light scattering spectroscopy (BLS), MOKE (Magneto-optical Kerr effect) -
dc.contributor.affiliatedAuthor Kwonjin Park -
dc.contributor.affiliatedAuthor Chun-Yeol You -
dc.contributor.affiliatedAuthor June-Seo Kim -
dc.contributor.alternativeName 박권진 -
dc.contributor.alternativeName Chun-Yeol You -
dc.contributor.alternativeName 김준서 -
dc.rights.embargoReleaseDate 2026-02-28 -
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