X-ray Debye temperature of mechanically milled Ni0.5Zn0.5Fe2O4 spinel ferrite

被引：40

作者：

Modi, K. B. ^{[1
]}

Pathak, T. K. ^{[1
]}

Vasoya, N. H. ^{[1
]}

Lakhani, V. K. ^{[1
]}

Baldha, G. J. ^{[1
]}

Jha, P. K. ^{[2
]}

机构：

[1] Saurashtra Univ, Dept Phys, Rajkot 360005, Gujarat, India

[2] Bhavnagar Univ, Dept Phys, Bhavnagar 364002, Gujarat, India

来源：

INDIAN JOURNAL OF PHYSICS | 2011年 / 85卷 / 03期

关键词：

Magnetic oxide; X-ray diffraction; nanomaterials; Debye temperature; SCATTERING;

D O I：

10.1007/s12648-011-0051-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The X-ray Debye temperatures, theta(M), of spinel ferrite composition Ni0.5Zn0.5Fe2O4, mechanically milled upto 9 hrs, were determined from integrated intensities of selected Bragg reflections. The theta(M) was found to increase with milling time. The results are explained in the light of milling induced grain orientation and surface effect. The values of theta(M) were found to be lower as compared to the Debye temperatures obtained from infrared spectral data analysis. The difference can be explained on the basis of increase in an excess free volume in the form of vacancies and vacancy clusters associated with grain boundaries.

引用

页码：411 / 420

页数：10

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