| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1500194 | Scripta Materialia | 2010 | 4 Pages |
Abstract
CoPt films without and with underlayers of Pt, Ru, Ag or Au were deposited on MgO(1 1 1) substrates by magnetron sputtering at 350 °C. Using a Pt underlayer resulted in an epitaxially grown Ll1 structure with enhanced chemical ordering, a high perpendicular anisotropy energy of 2.1 × 106 J m–3, and an anisotropy field of 2.4 MA m−1 at 4 K, which reduces the Ll1 ordering temperature to under 200 °C and produces a room-temperature anisotropy field that exceeds 1.6 MA m−1, indicating potential application for magnetic recording.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Fu-Te Yuan, An-Cheng Sun, Jen-Hwa Hsu,