Magnetic field diffusion into conducting nonlinear magnetic media

被引：6

作者：

Tellini, B ^{[1
]}

Bologna, M

Pelliccia, D

机构：

[1] Univ Pisa, Dept Elect Syst & Automat, I-56122 Pisa, Italy

[2] Univ Tarapaca, Dept Fis, Arica, Chile

[3] GSD Srl, I-56014 Pisa, Italy

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2005年 / 41卷 / 03期

关键词：

magnetic fields; magnetic materials; nonlinear diffusion equations;

D O I：

10.1109/TMAG.2004.841700

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：

We study the conditions for a wave-like solution in the context of an electromagnetic field diffusing into nonlinear magnetic conducting media. In the usual B-H relation, the differential magnetic permeability has only positive values. Through an analytical treatment, we show that it is possible to find an attenuationless field behavior inside media with an appropriate induction (B) and magnetic field (H) relation, under the assumption that the differential magnetic permeability can also assume negative values. The wave-like solution leads to unusual electromagnetic behavior and invites further investigation into practical applications.

引用

页码：1112 / 1117

页数：6

共 12 条

[1] Effects of surface waves on the behavior of perfect lenses [J].

Feise, MW ;

Bevelacqua, PJ ;

Schneider, JB .

PHYSICAL REVIEW B, 2002, 66 (03) :351131-351135

[2]

FEISE MW, 2002, PHYS REV E, V66, P35

[3]

Jackson JD., 1998, Classical Electrodynamics, V3

[4]

Landau L.D., 1981, ELECTRODYNAMICS CONT

[5] High-temperature, high-frequency characterization system for power ferrites [J].

Nakmahachalasint, P ;

Ngo, KDT .

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2003, 52 (03) :804-808

[6] Negative refraction makes a perfect lens [J].

Pendry, JB .

PHYSICAL REVIEW LETTERS, 2000, 85 (18) :3966-3969

[7] Magnetism from conductors and enhanced nonlinear phenomena [J].

Pendry, JB ;

Holden, AJ ;

Robbins, DJ ;

Stewart, WJ .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1999, 47 (11) :2075-2084

[8] THE INFLUENCE OF STRESS ON FERROMAGNETIC HYSTERESIS [J].

PITMAN, KC .

IEEE TRANSACTIONS ON MAGNETICS, 1990, 26 (05) :1978-1980

[9] Subwavelength imaging by a left-handed material superlens [J].

Rao, XS ;

Ong, CK .

PHYSICAL REVIEW E, 2003, 68 (06)

[10]

RAO XS, 2003, PHYS REV E, V68, P67

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