Study of CoFe2O4/NiFe2O4 nanocomposite ferrite film

被引：8

作者：

Rahman, Atikur ^{[1
]}

Jayaganthan, R. ^{[2
,3
,4
]}

机构：

[1] Natl Inst Technol Srinagar, Dept Met & Mat Engn, Srinagar 190006, Jammu & Kashmir, India

[2] Indian Inst Technol Roorkee, Dept Met & Mat Engn, Roorkee, Uttar Pradesh, India

[3] Indian Inst Technol Roorkee, Ctr Nanotechnol, Roorkee, Uttar Pradesh, India

[4] Indian Inst Technol, Dept Engn Design, Madras, Tamil Nadu, India

来源：

SURFACE ENGINEERING | 2017年 / 33卷 / 11期

关键词：

Exchange-spring; composite ferrite film; magnetic properties; SQUID; FE-SEM/EDS; XRD; MAGNETIC-PROPERTIES; COMPOSITE; COATINGS; PERMEABILITY; COFE2O4; COMPLEX;

D O I：

10.1080/02670844.2017.1294812

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Electroless nanostructured films of hard ferrite (CoFe2O4), soft ferrite (NiFe2O4) and composite ferrite CoFe2O4/NiFe2O4 (hard/soft ferrite) were deposited on soda lime glass. The structures and magnetic properties of samples were characterised by X-ray powder diffraction, field emission scanning electron microscopy and superconducting quantum interference device (SQUID, MPMSXL). The results of magnetic properties revealed that the saturation magnetisation (M-s), remanent magnetisation (M-r), coercivity (H-c) and M-r/M-s ratio of composite ferrite film (CoFe2O4/NiFe2O4) were higher than those of a single hard ferrite film (CoFe2O4) and soft ferrite film (NiFe2O4). The enhancement in magnetic properties of composite ferrite film (CoFe2O4/NiFe2O4) may be attributed to the exchange coupling interaction between hard magnetic and soft magnetic materials. The mean crystallite size of soft ferrite (NiFe2O4), hard ferrite (CoFe2O4) and composite ferrite films (CoFe2O4/NiFe2O4) was found to be in the range of 20-40nm. The exchange-spring interaction mechanism was discussed.

引用

页码：810 / 815

页数：6

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