SIZE-DEPENDENT MAGNETIC-PROPERTIES OF MANGANESE FERRITE FINE PARTICLES

被引：46

作者：

TANG, ZX

SORENSEN, CM

KLABUNDE, KJ

HADJIPANAYIS, GC

机构：

[1] KANSAS STATE UNIV AGR & APPL SCI,DEPT CHEM,MANHATTAN,KS 66506

[2] UNIV DELAWARE,DEPT PHYS & ASTRON,NEWARK,DE 19716

来源：

JOURNAL OF APPLIED PHYSICS | 1991年 / 69卷 / 08期

关键词：

D O I：

10.1063/1.348048

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have developed synthetic techniques involving coprecipitation of iron(III) and manganese(II) ions from aqueous solutions using NaOH to create single-crystal, stoichiometric MnFe2O4 particles. The particle diameter could be varied between 5 and 25 nm by varying the metallic-ion to hydroxide-ion concentration ratio. Magnetic measurements revealed that the saturation magnetization decreased, the ferrimagnetic to paramagnetic transition broadened, and the apparent transition temperature increased, all with decreasing particle size.

引用

页码：5279 / 5281

页数：3

共 13 条

[1]

BARBER MN, 1983, PHASE TRANSITIONS CR, P153

[2] MAGNETIC HYSTERESIS LOOP OF ONE MONOLAYER OF CO ON CU(100) [J].