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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2001.12
- 수록면
- 109 - 118 (10page)
이용수
초록· 키워드
오류제보하기
A computer simulation, utilizing the Landau-Lifshitz-Gilbert equation, of ultra-high-density recording on continuous longitudinal media is carried out. The two important features of this work are the use of a planar-type head, which enables a high write field of 14183 Oe to be generated at the center of the recording medium, and the media with very high coercivities up to 13010 Oe. From a systematic investigation, it is found that the optimum write field is higher than the medium coercivity by only 3400 Oe over a wide coercivity range. This new finding allows one to write an a medium with a very high coercivity by using a planar-type head. It is demonstrated that a reasonably good bit pattern with a bit density of 605 kfci is generated on the medium with a coercivity of 11720 Oe, and, combined with a high track pitch density of 100 ktpi, a recording density of 60 Gb/in² can be obtained in a single layer medium. With an improved write- head design, even a higher recording density of 75 Gb/in² may be possible since comparison of the results for the bit pattern from the present head profile and the ideal Lindholm profile indicates an increase in the track pitch density of about 20%. Even at this density, the thermal stability parameter (KV/kT) at room temperature is high enough (60) to provide ample room for thermal stability.
목차
Abstract
1. Introduction
2. Model and Computation
3. Results and Discussion
4. Conclusions
Acknowledgments
References
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