Microstructural, compositional and magnetic characterization of electrodeposited and annealed Co-Pt-based thin films

被引：15

作者：

Rozman, Kristina Zuzek ^{[1
]}

Kovac, Janez ^{[2
]}

McGuiness, Paul J. ^{[1
]}

Samardzija, Zoran ^{[1
]}

Markoli, Bostjan ^{[3
]}

Kobe, Spomenka ^{[1
]}

机构：

[1] Jozef Stefan Inst, Dept Nanostructured Mat, Ljubljana 1000, Slovenia

[2] Jozef Stefan Inst, Dept Surface Engn & Optoelect, Ljubljana 1000, Slovenia

[3] Univ Ljubljana, Dept Mat Met, Fac Nat Sci & Engn, Ljubljana 1000, Slovenia

来源：

THIN SOLID FILMS | 2010年 / 518卷 / 06期

关键词：

Cobalt; Platinum; Electrochemistry; Depth profiling; Magnetic properties and measurements;

D O I：

10.1016/j.tsf.2009.11.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Near-equiatomic Co-Pt thin films with thicknesses of 520 nm were deposited from a single electrolyte onto glass-based Au-coated substrates using the electrodeposition method. The as-deposited Co-Pt-based films were annealed at temperatures from 500 degrees C to 700 degrees C for 1 h. The phase formation, microstructure and the magnetic properties were analyzed. It was found that with an increase of the annealing temperature the coercivity increases up to 1.18 T due to the transformation to the L1(0) phase. In contrast to the coercivity the saturation magnetization and the remanence were found to decrease upon annealing, due to the decrease of the Co concentration in the Co-Pt film because of the oxidation and the interdiffusion reactions between the Co-Pt thin film and the substrate. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1751 / 1755

页数：5

共 18 条

[1] Stress-induced shape transition of CoSi2 clusters on Si(100) [J].

Brongersma, SH ;

Castell, MR ;

Perovic, DD ;

Zinke-Allmang, M .

PHYSICAL REVIEW LETTERS, 1998, 80 (17) :3795-3798

[2]

CAHN RW, 1983, PHYS METALLURGY, P987

[3] Coevaporation of CoPt nanoparticles [J].

Castaldi, L ;

Giannakopoulos, K ;

Travlos, A ;

Niarchos, D .

APPLIED PHYSICS LETTERS, 2004, 85 (14) :2854-2856

[4] Shapes, multiple twins and surface structures of monodisperse FePt magnetic nanocrystals [J].

Dai, ZR ;

Sun, SH ;

Wang, ZL .

SURFACE SCIENCE, 2002, 505 (1-3) :325-335

[5]

DEMPSEY NM, 2004, P 18 INT WORKSH HIGH, P779

[6] Preparation of Co-Pt alloy film magnets by electrodeposition [J].

Fujita, N. ;

Maeda, S. ;

Yoshida, S. ;

Takase, M. ;

Nakano, M. ;

Fukunaga, H. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 272 :E1895-E1897

[7] CoPt and FePt nanowires by electrodeposition [J].

Huang, YH ;

Okumura, H ;

Hadjipanayis, GC ;

Weller, D .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (10) :6869-6871

[8] High-temperature epitaxy of PtSi/Si(001) [J].

Kavanagh, KL ;

Reuter, MC ;

Tromp, RM .

JOURNAL OF CRYSTAL GROWTH, 1997, 173 (3-4) :393-401

[9] Phase formation, microstructure, and hard magnetic properties of electrodeposited FePt films [J].

Leistner, K ;

Backen, E ;

Schüpp, B ;

Weisheit, M ;

Schultz, L ;

Schlörb, H ;

Fähler, S .

JOURNAL OF APPLIED PHYSICS, 2004, 95 (11) :7267-7269

[10]

MENSHIKOV AZ, 1974, FIZ MET METALLOVED+, V38, P505

← 1 2 →