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Magnetic and Structural Variations Depending on the Annealing Temperature of Co Films on Al2O3(0001); 후열처리 온도에 따른 Co 박막의 구조 및 자성 특성 변화
- Park, Kangjin;
- Son, Yeongjun;
- Song, Sehwan;
- Lee, Jisung;
- Han, Seonghoon;
- ... Lee, Dooyong;
- 외 3명
SCOPUS
0초록
This study deposited a cobalt (Co) film on the Al2O3(0001) substrate by a flash evaporation method to examine the structural and magnetic property variations depending on the various post-annealing temperatures. Co-film formed islands during annealing due to the surface energy mismatch between the metallic film and the insulating substrate. As a result, the post-annealed Co particles formed an ellipsoid shape with improved crystallinity as temperature increased. Structural analysis confirmed that the Co particles grew in the Co(111)-oriented FCC structure. Interestingly, there are different annealing-temperature-dependent characteristics of magnetic properties depending on the magnetic field direction due to the competing nature between the crystalline and shape anisotropy of the aggregated Co particles. © 2024 Korean Physical Society. All rights reserved.
키워드
- 제목
- Magnetic and Structural Variations Depending on the Annealing Temperature of Co Films on Al2O3(0001); 후열처리 온도에 따른 Co 박막의 구조 및 자성 특성 변화
- 저자
- Park, Kangjin; Son, Yeongjun; Song, Sehwan; Lee, Jisung; Han, Seonghoon; Ju, Tae-seong; Lee, Dooyong; Kim, Songkil K.; Park, Sungkyun
- 발행일
- 2024-02
- 유형
- Article
- 저널명
- 새물리
- 권
- 74
- 호
- 2
- 페이지
- 135 ~ 142
- 언어
- KOR
- 출판사
- Korean Physical Society
- 발행국가
- 대한민국
- 분량
- 8 페이지
- ISSN
- E 2289-0041
P 0374-4914