Differential scanning calorimetry studies of the effect of Cu on the A1 to L10 transformation in FePt thin films

被引：27

作者：

Berry, DC

Kim, J

Barmak, K

Wierman, K

Svedberg, EB

Howard, JK

机构：

[1] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA

[2] Carnegie Mellon Univ, Ctr Data Storage Syst, Pittsburgh, PA 15213 USA

[3] Seagate Res, Pittsburgh, PA 15222 USA

来源：

SCRIPTA MATERIALIA | 2005年 / 53卷 / 04期

关键词：

L1(0) FeCuPt; differential scanning calorimetry (DSC); magnetic recording thin films; phase transformation kinetics; ordering;

D O I：

10.1016/j.scriptamat.2005.04.026

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ternary FeCuPt alloys with 1-5 at.% Cu produced no advantage over equivalent binary FePt alloys in terms of lowering the kinetic ordering temperature. The Curie temperature decreased with increasing Cu content. The transformation enthalpy and activation energy were not affected. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

收藏

页码：423 / 428

页数：6

相关论文

共 22 条

[1] MAGNETIC, TRANSPORT, AND STRUCTURAL-PROPERTIES OF IRON-PLATINUM THIN-FILMS [J].

ABOAF, JA ;

MCGUIRE, TR ;

HERD, SR ;

KLOKHOLM, E .

IEEE TRANSACTIONS ON MAGNETICS, 1984, 20 (05) :1642-1644

[2] Calorimetric studies of the A1 to L10 transformation in binary FePt thin films with compositions in the range of 47.5-54.4 at.% Fe -: art. no. 024902 [J].

Barmak, K ;

Kim, J ;

Berry, DC ;

Hanani, WN ;

Wierman, K ;

Svedberg, EB ;

Howard, JK .

JOURNAL OF APPLIED PHYSICS, 2005, 97 (02)

[3] Calorimetric studies of the A1 to L10 transformation in FePt and related ternary alloy thin films [J].

Barmak, K ;

Kim, J ;

Berry, DC ;

Wierman, KW ;

Svedberg, EB ;

Howard, JK .

JOURNAL OF APPLIED PHYSICS, 2004, 95 (11) :7486-7488

[4] Calorimetric studies of the A1 to L10 transformation in FePt and CoPt thin films [J].

Barmak, K ;

Kim, J ;

Shell, S ;

Svedberg, EB ;

Howard, JK .

APPLIED PHYSICS LETTERS, 2002, 80 (22) :4268-4270

[5] HIGH ANISOTROPY L1(0) THIN-FILMS FOR LONGITUDINAL RECORDING [J].

COFFEY, KR ;

PARKER, MA ;

HOWARD, JK .

IEEE TRANSACTIONS ON MAGNETICS, 1995, 31 (06) :2737-2739

[6]

IVANOV OA, 1973, FIZ MET METALLOVED+, V35, P92

[7] Low-temperature ordering of L10-CoPt thin films promoted by Sn, Pb, Sb, and Bi additives [J].

Kitakami, O ;

Shimada, Y ;

Oikawa, K ;

Daimon, H ;

Fukamichi, K .

APPLIED PHYSICS LETTERS, 2001, 78 (08) :1104-1106

[8] DIFFUSION OF PLATINUM IN FE-PT SYSTEM [J].

KUCERA, J ;

MILLION, B .

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 1975, 31 (01) :275-282

[9] Chemical diffusion in L10-ordered FePt [J].

Kushida, A ;

Tanaka, K ;

Numakura, H .

MATERIALS TRANSACTIONS, 2003, 44 (01) :59-62

[10] Rapid ordering of Zr-doped FePt alloy films [J].

Lee, SR ;

Yang, S ;

Kim, YK ;

Na, JG .

APPLIED PHYSICS LETTERS, 2001, 78 (25) :4001-4003