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- Title
Fabrication of Patterned Magnetic Nanomaterials for Data Storage Media.
- Authors
Choi, Chulmin; Noh, Kunbae; Kuru, Cihan; Chen, Li-Han; Seong, Tae-Yeon; Jin, Sungho
- Abstract
Patterned media (PM) for magnetic information storage have received increased attention in recent years as the primary candidate for 1 Terabit/in or higher recording density for computer hard disk drives. A PM consists of a periodic array of well-defined magnetic islands, each of which can store one bit of data. In the simplest scheme, the structures could be magnetic pillars and dots with a single easy axis of magnetization. The direction of detected magnetization by the read/write head is interpreted as a binary signal 1 or 0. Some of the main technical issues in the PM include the difficulty in fabricating small nanoisland arrays in a periodic fashion over large areas, reliability/reproducibility of magnetic bit characteristics, as well as wear and head flyability issues associated with the media surface roughness, and processing cost. This article deals with a recent investigation of various fabrication approaches, nanostructural features, and magnetic properties for the bit PM.
- Subjects
NANOSTRUCTURED materials; INFORMATION storage &; retrieval systems; DATA disk drives; MAGNETIZATION; SURFACE roughness
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2012, Vol 64, Issue 10, p1165
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-012-0440-z