Magnetic properties and structure of (Co-alloy)-SiO2 granular films

被引：16

作者：

Kaitsu, I

Inomata, A

Okamoto, I

Shinohara, M

机构：

[1] File Memory Lab. FUJITSU UMTTED, Atsugi 243-01

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1996年 / 32卷 / 05期

关键词：

D O I：

10.1109/20.539181

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We fabricated (Co-alloy)-SiO2 granular films by rf-sputtering with composite target and annealing in a high vacuum environment. The coercivity of the films depended on annealing temperature, the Co-alloy's volume fraction in the film, and other added elements to cobalt. We found that a (Co85Pt15)(83)-(SiO2)(17) granular film (Co85Pt15 : 64 vol. %) exhibited about 1600 Oe of coercivity at room temperature. The grains diameter was about 50 nm measured by AFM. X-ray diffraction patterns showed that the Co-alloy grains of most films had an fcc-phase structure. From Henkel-plot analysis, the magnetic exchange interaction between the CoPt grains was found to be weak.

引用

页码：3813 / 3815

页数：3

共 6 条

[1] ABE T, 1994, 18 ANN C MAGN JAP, P437
[2] ANTIGRANULOCYTES MAGNETIC SOLIDS
CHIEN, CL
[J]. JOURNAL OF APPLIED PHYSICS, 1991, 69 (08) : 5267 - 5272
[3] Hansen M., 1958, CONSTITUTION BINARY, DOI DOI 10.1149/1.2428700
[4] REMANENZVERHALTEN UND WECHSELWIRKUNGEN IN HARTMAGNETISCHEN TEILCHENKOLLEKTIVEN
HENKEL, O
[J]. PHYSICA STATUS SOLIDI, 1964, 7 (03): : 919 - 929
[5] ROADMAP FOR 10 GBIT/IN2 MEDIA - CHALLENGES
MURDOCK, ES
SIMMONS, RF
DAVIDSON, R
[J]. IEEE TRANSACTIONS ON MAGNETICS, 1992, 28 (05) : 3078 - 3083
[6] ORIGIN OF COERCIVITY IN (FE,CO)-BASED GRANULAR FILMS
TSOUKATOS, A
WAN, H
HADJIPANAYIS, GC
PAPAEFTHYMIOU, V
KOSTIKAS, A
SIMOPOULOS, A
[J]. JOURNAL OF APPLIED PHYSICS, 1993, 73 (10) : 6967 - 6969

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