Structural and magnetic properties of FePt and FePt-Al2O3 thin films
Bai, J; Yang, Z(杨正); Wei, F; Matsumoto, M; Morisako, A; Yang, Z (reprint author), Lanzhou Univ, Res Inst Magnet Mat, Lanzhou 730000, Peoples R China.
2002-06-16
发表期刊PHYSICA STATUS SOLIDI A-APPLIED RESEARCH
ISSN0031-8965
卷号191期号:2页码:590-596
出版者WILEY
摘要The magnetic and structural properties of FePt and FePt-Al2O3 films deposited by rf-sputtering on 7059 corning glass substrates were investigated. The coercivities of the films can be adjusted from 20 to 12.3 kOe through controlling the ordering degree of the FePt phase. With the increasing annealing temperature TA from 100 to 650 degreesC, the average grain size of FePt grains increased from about 10 to 50 nm in the FePt films, while it kept almost a constant of about 10 nm in the alumina-added films. The measurements of the deviation Deltam*(H) as a measure for particle-particle interaction and SFD (switching field distribution) revealed that the addition of alumina contributed to diluting the intergranular exchange coupling interaction. In the case of the FePt-Al2O3 (25 vol%) films with varying film thickness from 20 to 180 nm annealed at 550 degreesC for one hour, no obvious changes in structural and magnetic properties due to the variation of film thickness was detected. Grain size was in the vicinity of 10 nm, squareness S about 0.9, coercivity squareness S-* almost a constant of about 0.85, and the in-plane coercivities kept high value of about 5.5 kOe.
出版地WEINHEIM
学科领域Materials Science ; Physics
作者部门Lanzhou Univ, Res Inst Magnet Mat, Lanzhou 730000, Peoples R China;
Shinshu Univ, Dept Informat Engn, Nagano 3808553, Japan
DOI10.1002/1521-396X(200206)191:2<590::AID-PSSA590>3.0.CO;2-D
文章类型Article
收录类别SCIE ; EI
语种英语
WOS记录号WOS:000176692200027
EI记录号2002307027975
第一机构
Citation statistics
文献类型期刊论文
条目标识符http://ir.lzu.edu.cn/handle/262010/103720
Collection物理科学与技术学院
通讯作者Yang, Z (reprint author), Lanzhou Univ, Res Inst Magnet Mat, Lanzhou 730000, Peoples R China.
Recommended Citation:
GB/T 7714
Bai, J,Yang, Z,Wei, F,et al. Structural and magnetic properties of FePt and FePt-Al2O3 thin films[J]. PHYSICA STATUS SOLIDI A-APPLIED RESEARCH,2002,191(2):590-596.
APA Bai, J,Yang, Z,Wei, F,Matsumoto, M,Morisako, A,&Yang, Z .(2002).Structural and magnetic properties of FePt and FePt-Al2O3 thin films.PHYSICA STATUS SOLIDI A-APPLIED RESEARCH,191(2),590-596.
MLA Bai, J,et al."Structural and magnetic properties of FePt and FePt-Al2O3 thin films".PHYSICA STATUS SOLIDI A-APPLIED RESEARCH 191.2(2002):590-596.
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