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Magnetic and electrical properties of manganese and cadmium co-substituted lithium ferrites
被引:19
|作者:
Verma, Vivek
[1
,2
]
Gairola, S. P.
[1
]
Mathpal, Mohan C.
[1
]
Annapoorni, S.
[2
]
Kotnala, R. K.
[1
]
机构:
[1] Natl Phys Lab, New Delhi 110012, India
[2] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India
关键词:
Ferrites;
Magnetization;
Permeability;
Resistivity;
MICROWAVE-INDUCED COMBUSTION;
DIELECTRIC-PROPERTIES;
CATION DISTRIBUTION;
NICUZN-FERRITES;
MICROSTRUCTURE;
DENSIFICATION;
PERMEABILITY;
POWDER;
D O I:
10.1016/j.jallcom.2009.03.143
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:
Manganese and cadmium co-substituted lithium ferrite having the general formulae Li0.35Cd0.3MnxFe2.35-xO4 + 0.10 wt% Bi2O3 with x=0.0, 0.2, 0.4, 0.6, 0.8 and 1.0 has been prepared by standard ceramic technique. M-H curves of all samples have been determined by using vibrating sample magnetometer (VSM). The highest saturation magnetization 79emu/g is observed in Li0.35Cd0.3Fe2.35O4 (Mn = 0) and it decreases with increase in manganese content in the compound. It is observed that the value of initial permeability increases to maximum value similar to 230 for Mn = 0.4 and then decreases with further increase in Mn contents. The dc resistivity of all samples is found in the range of 10(7) Omega cm. (C) 2009 Published by Elsevier B.V.
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页码:872 / 876
页数:5
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