Magnetic properties of Nd3+-doped Ni0.7Mn0.3Fe2O4 ferrite nanocrystal

被引：13

作者：

Zhao, Lijun ^{[1
]}

Yang, Hua ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China

来源：

MATERIALS AND MANUFACTURING PROCESSES | 2008年 / 23卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ferrite; magnetic properties; nanocrystal; spinel structure;

D O I：

10.1080/10426910701524253

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The nanocrystalline Ni0.7Mn0.3Nd0.1Fe1.9O4 ferrites were prepared by emulsion method. X-ray diffractometer (XRD), transmission electron microscope (TEM), Mssbauer spectra, and vibrating samples magnetometer (VSM) were used to study the structure, morphology, and magnetic properties of nanocrystalline powders. The magnetic properties of Ni0.7Mn0.3NdxFe2-xO4 nanocrystal ferrites were investigated at 300 K and 2 K. The coercivity of Ni0.7Mn0.3Nd0.1Fe1.9O4 nanocrystalline ferrite reaches 770 Oe at 2K. Room-temperature Mssbauer spectra show that the Ni0.7Mn0.3Nd0.1Fe1.9O4 nanoparticles with particle size of 10.7 nm have superparamagnetism.

引用

页码：5 / 9

页数：5

共 12 条

[1] MOSSBAUER STUDIES OF CHARGE TRANSFER PROCESS IN SYSTEM ZNXFE3-XO4 [J].

DOBSON, DC ;

LINNETT, JW ;

RAHMAN, MM .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1970, 31 (12) :2727-&

[2]

DOMINIC P, 1986, MOSSBAUER SPECTROSCO, P22

[3] MAGNETIC EXCHANGE INTERACTIONS IN PEROVSKITE SOLID-SOLUTIONS .5. THE UNUSUAL DEFECT STRUCTURE OF SRFEO3-Y [J].

GIBB, TC .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1985, (07) :1455-1470

[4] Surface spin disorder in NiFe2O4 nanoparticles [J].

Kodama, RH ;

Berkowitz, AE ;

McNiff, EJ ;

Foner, S .

PHYSICAL REVIEW LETTERS, 1996, 77 (02) :394-397

[5] Synthesis and characterization of superparamagnetic CoxFe3-xO4 nanoparticles [J].

Li, XY ;

Kutal, C .

JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 349 (1-2) :264-268

[6] Chemical control of superparamagnetic properties of magnesium and cobalt spinel ferrite nanoparticles through atomic level magnetic couplings [J].

Liu, C ;

Zou, BS ;

Rondinone, AJ ;

Zhang, J .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (26) :6263-6267

[7] Low temperature surface spin-glass transition in γ-Fe2O3 nanoparticles [J].

Martinez, B ;

Obradors, X ;

Balcells, L ;

Rouanet, A ;

Monty, C .

PHYSICAL REVIEW LETTERS, 1998, 80 (01) :181-184

[8]

Rezlescu N., 1998, J. Alloys Comp, V657, P275, DOI [10.1016/S0925-8388(98)00413-7, DOI 10.1016/S0925-8388(98)00413-7]

[9] The influence of Nd oxide substitution on magnetic and electrical properties of Cu-Zn ferrite [J].

Samy, AM ;

El-Sayed, HM ;

Attar, AA .

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2003, 200 (02) :401-406

[10] MOSSBAUER INVESTIGATION OF ZINC FERRITE PARTICLES [J].

TANG, H ;

DU, YW ;

QIU, ZQ ;

WALKER, JC .

JOURNAL OF APPLIED PHYSICS, 1988, 63 (08) :4105-4107

← 1 2 →