Influence of annealing time on structural and magnetic properties of rapid thermally annealed FePt films

被引：7

作者：

Brombacher, C. ^{[1
]}

Schubert, C. ^{[1
]}

Neupert, K. ^{[1
]}

Kehr, M. ^{[1
]}

Donges, J. ^{[2
]}

Albrecht, M. ^{[1
]}

机构：

[1] Tech Univ Chemnitz, Inst Phys, D-09107 Chemnitz, Germany

[2] DESY, HASYLAB, D-22603 Hamburg, Germany

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2011年 / 44卷 / 35期

关键词：

THIN-FILMS; TEMPERATURE; GROWTH;

D O I：

10.1088/0022-3727/44/35/355001

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

L1(0) ordered FePt films with (0 0 1) texture and out-of-plane magnetic easy axis were fabricated by rapid thermal annealing of chemically disordered FePt thin films grown on amorphous SiO2 substrates. While keeping the annealing temperature fixed at 800 degrees C, the influence of the annealing time was investigated in the regime between 5 and 300 s. The evolution of the a and c lattice parameters indicates that the in-plane strain is a key factor for the formation of the (0 0 1) texture. A large tetragonal distortion is found after an annealing time of 5 s whereas a relaxation of the lattice parameters towards bulk values is found for longer annealing times. The dependence of the magnetic properties on the annealing time will be discussed with respect to the observed variation of the structure and morphology of the annealed FePt films.

引用

页数：5

共 22 条

[1]

BERG H, 1972, METALL TRANS, V3, P1797, DOI 10.1007/BF02642563

[2] Ordering intermetallic alloys by ion irradiation:: A way to tailor magnetic media -: art. no. 077203 [J].

Bernas, H ;

Attané, JP ;

Heinig, KH ;

Halley, D ;

Ravelosona, D ;

Marty, A ;

Auric, P ;

Chappert, C ;

Samson, Y .

PHYSICAL REVIEW LETTERS, 2003, 91 (07) :772031-772034

[3] Control of the axis of chemical ordering and magnetic anisotropy in epitaxial FePt films [J].

Farrow, RFC ;

Weller, D ;

Marks, RF ;

Toney, MF ;

Cebollada, A ;

Harp, GR .

JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) :5967-5969

[4] Control of Curie Temperature of FePt(Cu) Films Prepared From Pt(Cu)/Fe Bilayers [J].

Ikemoto, Jun-Ichi ;

Imai, Yasuharu ;

Nakagawa, Shigeki .

IEEE TRANSACTIONS ON MAGNETICS, 2008, 44 (11) :3543-3546

[5] Perpendicular Magnetic Anisotropy in FePt Patterned Media Employing a CrV Seed Layer [J].

Kim, Hyunsu ;

Noh, Jin-Seo ;

Roh, Jong Wook ;

Chun, Dong Won ;

Kim, Sungman ;

Jung, Sang Hyun ;

Kang, Ho Kwan ;

Jeong, Won Yong ;

Lee, Wooyoung .

NANOSCALE RESEARCH LETTERS, 2011, 6 :1-6

[6] The effect of residual strain on (001) texture evolution in FePt thin film during postannealing [J].

Kim, Jae-Song ;

Koo, Yang-Mo ;

Shin, Namsoo .

JOURNAL OF APPLIED PHYSICS, 2006, 100 (09)

[7] The origin of (001) texture evolution in FePt thin films on amorphous substrates [J].

Kim, JS ;

Koo, YM ;

Lee, BJ ;

Lee, SR .

JOURNAL OF APPLIED PHYSICS, 2006, 99 (05)

[8] MAGNETIC HARDENING AND COERCIVITY MECHANISMS IN L1(0) ORDERED FEPD FERROMAGNETS [J].

KLEMMER, T ;

HOYDICK, D ;

OKUMURA, H ;

ZHANG, B ;

SOFFA, WA .

SCRIPTA METALLURGICA ET MATERIALIA, 1995, 33 (10-11) :1793-1805

[9] High energy products in rapidly annealed nanoscale Fe/Pt multilayers [J].

Liu, JP ;

Luo, CP ;

Liu, Y ;

Sellmyer, DJ .

APPLIED PHYSICS LETTERS, 1998, 72 (04) :483-485

[10] FePt films on self-assembled SiO2 particle arrays [J].

Makarov, D. ;

Brombacher, C. ;

Liscio, F. ;

Maret, M. ;

Parlinska, M. ;

Meier, S. ;

Kappenberger, P. ;

Albrecht, M. .

JOURNAL OF APPLIED PHYSICS, 2008, 103 (05)

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