Magnetic properties of γ-Fe2O3 nanoparticles

被引：0

作者：

Predoi, D ^{[1
]}

Kuncser, V

Nogues, M

Tronc, E

Jolive, JP

Filoti, G

Schinteie, G

机构：

[1] Univ Versailles, CNRS, LMOV, F-78035 Versailles, France

[2] Natl Inst Mat Phys, RO-76900 Bucharest, Romania

[3] Univ Paris 06, UA 302, F-75252 Paris, France

来源：

JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2003年 / 5卷 / 01期

关键词：

nanostructures; surfaces and interfaces; chemical synthesis;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The gamma-Fe2O3 nanoparticles with different surface states are investigated by X-ray Diffraction, Electron Microscopy, Differential Thermal Analysis and magnetic: measurements in low applied field. The influence of the adsorbed species (H2O and sulphate complexes) on the inter-particle magnetic interactions is analysed in relation to both the magnetic states of the surface and the inter-particle distance.

引用

页码：211 / 216

页数：6

共 15 条

[1] Superparamagnetic behaviour of γ-Fe2O3 nanoparticles dispersed in a silica matrix [J].

Cannas, C ;

Concas, G ;

Gatteschi, D ;

Falqui, A ;

Musinu, A ;

Piccaluga, G ;

Sangregorio, C ;

Spano, G .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2001, 3 (05) :832-838

[2] Magnetic properties of γ-Fe2O3-SiO2 aerogel and xerogel nanocomposite materials [J].

Cannas, C ;

Casula, MF ;

Concas, G ;

Corrias, A ;

Gatteschi, D ;

Falqui, A ;

Musinu, A ;

Sangregorio, C ;

Spano, G .

JOURNAL OF MATERIALS CHEMISTRY, 2001, 11 (12) :3180-3187

[3]

COEY JMD, 1980, ATOM ENERGY REV, V18, P73

[4]

COEY JMD, 1975, P 6 INT C MOSSB SPEC, V2, P133

[5] Thermal variation of the relaxation time of the magnetic moment of gamma-Fe2O3 nanoparticles with interparticle interactions of various strengths [J].

Dormann, JL ;

DOrazio, F ;

Lucari, F ;

Tronc, E ;

Prene, P ;

Jolivet, JP ;

Fiorani, D ;

Cherkaoui, R ;

Nogues, M .

PHYSICAL REVIEW B, 1996, 53 (21) :14291-14297

[6]

Dormann JL, 1997, ADV CHEM PHYS, V98, P283, DOI 10.1002/9780470141571.ch4

[7] From pure superparamagnetic regime to glass collective state of magnetic moments in γ-Fe2O3 nanoparticle assemblies [J].

Dormann, JL ;

Cherkaoui, R ;

Spinu, L ;

Nogues, M ;

Lucari, F ;

D'Orazio, F ;

Fiorani, D ;

Garcia, A ;

Tronc, E ;

Jolivet, JP .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1998, 187 (02) :L139-L144

[8] MOSSBAUER STUDIES OF SMALL PARTICLES OF IRON OXIDES IN SOIL [J].

GANGAS, NH ;

SIMOPOULOS, A ;

KOSTIKAS, A ;

YASSOGLOU, NJ ;

FILIPPAKIS, S .

CLAYS AND CLAY MINERALS, 1973, 21 (03) :151-160

[9] Metalcontaining nano-particles within polymeric matrices: preparation, structure, and properties [J].

Gubin, SP .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2002, 202 (2-3) :155-163

[10]

KODOMA RH, 1997, J APPL PHYS, V81, P5552

← 1 2 →