Mossbauer studies of nanosize Mn1-xZnxFe2O4

被引：71

作者：

Upadhyay, C

Verma, HC ^{[1
]}

Rath, C

Sahu, KK

Anand, S

Das, RP

Mishra, NC

机构：

[1] Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India

[2] Natl Met Lab, Jamshedpur 7, Bihar, India

[3] Reg Res Lab, Bhubaneswar 751013, Orissa, India

[4] Ctr Nucl Sci, New Delhi, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2001年 / 326卷 / 1-2期

关键词：

Mossbauer spectroscopy; ferrites; nanoparticles; spinel; superparamagnetism;

D O I：

10.1016/S0925-8388(01)01219-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanosized mixed ferrite Mn1-xZnFe2O4 (x = 0.0, 0.35, 0.5, 0.65, 1) has been prepared by hydrothermal route at pH 9 and 210 degreesC and studied by X-ray diffraction, magnetization measurement and Mossbauer spectroscopy. The size of the particles decreases gradually as the zinc concentration is increased. The cation distribution has been found to strongly depend on the process parameters. On annealing the system the cation distribution changes from a metastable state to a stable state which enhances the superparamagnetism. ZnFe2O4 with average particle size of 4 nm. shows magnetic ordering even at room temperature. (C) 2001 Elsevier Science BY All rights reserved.

引用

页码：94 / 97

页数：4

共 7 条

[1] Magnetic properties of ZnFe2O4 synthesized by ball milling [J].