Ferrimagnetic ordering in; nanostructured zinc ferrite

被引：56

作者：

Chinnasamy, CN

Narayanasamy, A

Ponpandian, N

Chattopadhyay, K

Guérault, H

Greneche, JM

机构：

[1] Univ Madras, Dept Nucl Phys, Ctr Mat Sci, Madras 600025, Tamil Nadu, India

[2] Univ Maine, UPRESA CNRS 6087, Fac Sci, Lab Phys Etat Condensee, F-72085 Le Mans 9, France

[3] Indian Inst Sci, Dept Met, Bangalore 560012, Karnataka, India

来源：

SCRIPTA MATERIALIA | 2001年 / 44卷 / 8-9期

关键词：

nanostructure; mechanical alloying; ferrites; Mossbauer effect; magnetic materials;

D O I：

10.1016/S1359-6462(01)00844-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nanostructured ZnFe2O4 powders were prepared with different grain sizes by ball milling bulk ZnFe2O4. Nanocrystalline ZnFe2O4 gives rise to a large magnetization at high temperatures with its value increasing with decrease of grain size. The ferrimagnetic ordering of nanocrystalline ZnFe2O4 is confirmed from Mossbauer studies. The observed spin canting of 57Fe spins in both the A and B sites may be due to the spin-glass-like surface layer or grain boundaries in the material.

引用

页码：1407 / 1410

页数：4

共 7 条

[1]

BEAN CP, 1959, J APPL PHYS, V30, pS120, DOI [DOI 10.1063/1.2185850, DOI 10.1063/1.1735100]

[2] Magnetism of crystalline and nanostructured ZnFe2O4 [J].

Burghart, FJ ;

Potzel, W ;

Kalvius, GM ;

Schreier, E ;

Grosse, G ;

Noakes, DR ;

Schäfer, W ;

Kockelmann, W ;

Campbell, SJ ;

Kaczmarek, WA ;

Martin, A ;

Krause, MK .

PHYSICA B, 2000, 289 :286-290

[3] Ionic disorder and Neel temperature in ZnFe2O4 nanoparticles [J].

Goya, GF ;

Rechenberg, HR .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 196 :191-192

[4] Irregular distribution of metal ions in ferrites prepared by co-precipitation technique structure analysis of Mn-Zn ferrite using extended X-ray absorption fine structure [J].

Jeyadevan, B ;

Tohji, K ;

Nakatsuka, K ;

Narayanasamy, A .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 217 (1-3) :99-105

[5] Magnetic structure evolution bn mechanically milled nanostructured ZnFe2O4 particles [J].

Jiang, JZ ;

Wynn, P ;

Morup, S ;

Okada, T ;

Berry, FJ .

NANOSTRUCTURED MATERIALS, 1999, 12 (5-8) :737-740

[6] Localized spin canting in partially inverted ZnFe2O4 fine powders [J].

Oliver, SA ;

Hamdeh, HH ;

Ho, JC .

PHYSICAL REVIEW B, 1999, 60 (05) :3400-3405

[7] MORPHOLOGY AND MAGNETIC-PROPERTIES OF ULTRAFINE ZNFE2O4 PARTICLES [J].

SATO, T ;

HANEDA, K ;

SEKI, M ;

IIJIMA, T .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1990, 50 (01) :13-16

← 1 →