지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
High coercivity thin Fe₃O₄ and γ-Fe₂O₃ films were deposited on Si substrate under well controlled O₂ partial pressure by dc-reactive magnetron sputtering. The coercivity of as-deposited magnetite films is below 640 Oe. After oxidizing at 360℃ for 10 minutes, the films transform to maghemite γ-Fe₂O₃ completely, and the coercivity increases greatly to 2100 ~ 4120 Oe, depending on modification or not with minor addition of Co or/and Mn. The origin of coercivity enhancement is attributed mainly to magnetic anisotropy arisen from interfacial stress. The addition of 5 at% Co and 5 at% Mn greatly enhances coercivity and squareness ratio. These films are potential for ultra-high density recording applications.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. EXPERIMENTAL
Ⅲ. RESULTS AND DISCUSSION
Ⅳ. CONCLUDING REMARKS
ACKNOWLEDGMENTS
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2009-428-015147958