Magnetic-field-assisted giant penetration of a radio-frequency electromagnetic field in lanthanum manganites

被引：6
|
作者：
Rinkevich, A [1 ]
Nossov, A
Rigmant, M
Ustinov, V
Vassiliev, V
Vladimirova, E
Slobodin, B
机构：
[1] Russian Acad Sci, Inst Met Phys, Ural Div, Ekaterinburg 620219, Russia
[2] Russian Acad Sci, Inst Solid State Chem, Ural Div, Ekaterinburg 620219, Russia
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2002年 / 38卷 / 01期
关键词：
high-frequency materials; magnetic permeability; manganites;
D O I：
10.1109/20.990116
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The penetration of an electromagnetic field in the frequency range of 20 kHz to 30 MHz through the plates of bulk polycrystalline sintered La0.60Pb0.40MnO3 and La0.70Y0.07Ba0.23MnO3 manganites was studied. A giant increase, up to 10 times, of the transmission coefficient, on application of the magnetic field, was found. Skin depth variations were caused mainly by variation of the dynamical reversible magnetic permeability. The contribution of the magnetic permeability dispersion to the frequency dependence of skin depth was clarified.
引用
收藏
页码：257 / 259
页数：3
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