Effects of B and C on the ordering of L10-CoPt thin films

被引：37

作者：

Yamaguchi, H ^{[1
]}

Kitakami, O

Okamoto, S

Shimada, Y

Oikawa, K

Fukamichi, K

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[2] Natl Inst Adv Ind Sci & Technol, Sendai, Miyagi 9838551, Japan

[3] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 13期

关键词：

D O I：

10.1063/1.1408605

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the effects of B and C on the ordering of L1(0)-CoPt films and confirmed the following quite different role between B and C in CoPt. A small amount of B considerably decreases the temperature for ordering and is interstitially incorporated into L1(0)-CoPt along its c axis due to the large negative heat of solutions with Co and Pt. X-ray photoelectron spectroscopy analyses have revealed that B atoms combine with Co and Pt. In contrast, C is not incorporated into the CoPt lattice due to its positive heat of solution, resulting in no decrease in the ordering temperature. The present results reveal that CoPt films containing a small amount of B are promising for high density recording media. (C) 2001 American Institute of Physics.

引用

页码：2001 / 2003

页数：3

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