Influence of manganese substitution on structural and magnetic properties of CoFe2O4 nanoparticles

被引：82

作者：

Adeela, N. ^{[1
,2
]}

Maaz, K. ^{[2
,4
]}

Khan, U. ^{[3
]}

Karim, S. ^{[2
]}

Nisar, A. ^{[2
]}

Ahmad, M. ^{[2
]}

Ali, G. ^{[2
]}

Han, X. F. ^{[3
]}

Duan, J. L. ^{[4
]}

Liu, J. ^{[4
]}

机构：

[1] Univ Punjab, Ctr High Energy Phys, Lahore 54000, Pakistan

[2] Phys Div PINSTECH, Nanomat Res Grp, Islamabad 45650, Pakistan

[3] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

[4] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 639卷

关键词：

Ferrite nanoparticles; Coprecipitation; Magnetic properties; COMBUSTION SYNTHESIS; COBALT FERRITE; NI;

D O I：

10.1016/j.jallcom.2015.03.203

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanocrystalline ferrites with general formula of Co1 xMnxFe2O4 (0 <= x <= 1) have been synthesized via wet chemical coprecipitation technique. Structural and magnetic investigations were performed at room temperature. The results revealed the formation of single phase Mn-substituted CoFe2O4 nanoparticles with crystallite sizes in the range 12-15 nm. An increase in lattice parameter and decrease in X-ray density were observed with increasing Mn concentration in CoFe2O4. FTIR results showed two (vibrational) frequency bands (upsilon(1) and upsilon(2)) for tetrahedral and octahedral sites confirming the formation of spinel ferrite. Magnetic measurements showed increasing behavior of both coercivity and saturation magnetization of cobalt ferrite up to 20-30% manganese concentration followed by a monotonic decrease in these parameters for higher Mn concentrations. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：533 / 540

页数：8

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