Transport properties of Ti-Ni spinel ferrites

被引：31

作者：

Eraky, M. R. ^{[1
]}

Attia, S. M. ^{[1
,2
]}

机构：

[1] Kafrelsheikh Univ, Fac Sci, Dept Phys, Kafr Al Sheikh, Egypt

[2] Umm Al Qura Univ, Coll Appl Sci, Dept Phys, Mecca 21955, Saudi Arabia

来源：

PHYSICA B-CONDENSED MATTER | 2015年 / 462卷

关键词：

Semiconductors; Electrical transport; Ferrites; NiTi ferrite; ELECTRICAL-CONDUCTIVITY; COPPER FERRITE; DIELECTRIC-PROPERTIES; MAGNETIC-PROPERTIES; HEXAFERRITES; RESISTIVITY; NICKEL; TEMPERATURE; BEHAVIOR;

D O I：

10.1016/j.physb.2015.01.011

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Polycrystalline ferrites with the composition TixNi(1 + x)Fe(2 - 2x) (0 <= x <= 0.625) were prepared by a double sintering ceramic method. Results of DC electrical resistivity, rho(DC), versus a temperature ensured that the samples possess a serniconcluctive character. Results of Seebeck coefficient S reveal that pure Ni ferrite is n-type semiconductor while the sample with x=0.625 is p-type semiconductor over the whole range of temperature. However, for other samples, 5 shows a transition from p-type to n-type semiconductor with increasing temperature. On the basis of rho(DC), S and rho(AC), the conduction mechanism of NiTi ferrite was determined. (C) 2015 Elsevier B.V. All rights reserved

引用

页码：97 / 103

页数：7

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