Mossbauer and magnetic studies of Mn0.1Sr0.2Co0.7Fe2O4 nanoferrite

被引：4

作者：

Abdallah, H. M. I. ^{[1
]}

Msomi, J. Z. ^{[2
]}

Moyo, T. ^{[1
]}

Dolo, J. J. ^{[2
]}

Lancok, A. ^{[3
]}

机构：

[1] Univ KwaZulu Natal, Sch Phys, ZA-4000 Durban, South Africa

[2] Univ Free State, Dept Phys, ZA-9866 Phuthaditjhaba, South Africa

[3] AS CR, Inst Inorgan Chem, Vvi, Rez 1001, Czech Republic

来源：

HYPERFINE INTERACTIONS | 2011年 / 203卷 / 1-3期

关键词：

Nanoparticles; Coercive fields; Mossbauer spectroscopy; Spin freezing; ROUTE;

D O I：

10.1007/s10751-011-0370-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The magnetic properties of Mn0.1Sr0.2Co0.7Fe2O4 nanoferrite with particle size of about 8 nm were investigated using magnetization and Mossbauer spectroscopy measurements. The sample shows a large increase in coercive field from 0.045 kOe at room temperature to about 3.00 kOe at 4 K. Room temperature coercive fields increased with increase in the annealing temperature between 300 degrees C and 800 degrees C. Our results show evidence of transformation from single domain to multi-domain structure with thermal annealing.

引用

页码：99 / 104

页数：6

共 4 条

[1] Mossbauer and Electrical Studies of MnxCo1-xFe2O4 Compounds Prepared via Glycothermal Route [J].