NONSTOICHIOMETRIC LIZNTI FERRITES FOR MICROWAVE APPLICATIONS

被引：9

作者：

IGLESIAS, A ^{[1
]}

GUERASIMENKO, IV ^{[1
]}

DIAZ, S ^{[1
]}

ARIAS, AG ^{[1
]}

机构：

[1] UNIV HAVANA,DEPT FIS APLICADA,HAVANA,CUBA

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1993年 / 140卷 / 01期

关键词：

D O I：

10.1002/pssa.2211400121

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The role of iron defect in the chemical composition, to make up for the contamination by the steel mins in spinel ferrites of nominal composition Li-0.5(1-x+y)ZnxTiyFe[2.5-0.5(x+3y-z-k])MnzO4, where k accounts for the iron defect, is studied through the measurement of M(s) and the curves of ferromagnetic resonance. Samples are sintered in air and O-2. The ferromagnetic linewidth Delta H decreases in both cases with increasing k, without modifying M(s) noticeably, for k up to 0.05. The asymmetry of the resonance peak implies an anisotropy compensation point for k near 0.05 suggesting that, besides the Fe2+ compensation taking place at this value, some phase segregation occurs when k > 0.04, changing the composition of the spinel matrix.

引用

页码：221 / 226

页数：6

共 18 条

[1]

ARIAS AG, 1988, J THERM ANAL, V34, P359

[2] FABRICATION AND PROPERTIES OF MICROWAVE LITHIUM FERRITES [J].