[공학]Patterned Magnetic Media
- 최초 등록일
- 2006.09.21
- 최종 저작일
- 2006.09
- 7페이지/
한컴오피스
- 가격 1,500원
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소개글
Patterned Magnetic Media에 대해 영어로 정리해 놓은 자료입니다.
많은 그림과 예를 들며 설명해 놓았습니다.
많은 도움되시길 바랍니다.
목차
● Overview
● Conventional Media and the Superparamagnetic Limit
● Patterned Media Circumvents the Superparamagnetic Effect
● Fabrication of Patterned Media
● Magnetic Properties Patterned Media
● Integration of Patterned Media into the Drive
● Summary
본문내용
As shown in Figure 1, data is stored in circular tracks on a disk. Within each track, a stream of data bits is recorded as regions of opposite magnetization. Each track consists of equally spaced bit cells, with a digital `1` being indicated by a boundary (called a magnetic transition) between regions of opposite magnetization within a bit cell, and a `0` being indicated by a continuous region without such a boundary. At high magnification, it becomes apparent that within each bit cell there are many tiny magnetic grains. These grains are randomly created during the deposition of the magnetic film. Each grain behaves like an independent magnet whose magnetization can be flipped by the write head during the data writing process.
Note that the boundaries between regions of opposite magnetization must occur along the boundaries between the tiny grains -- it is not possible to flip
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