POLAR KERR ROTATION IN CO-DOPED HEXAGONAL FERRITES

被引：8

作者：

SIMSA, Z

GORNERT, P

POINTON, AJ

GERBER, R

机构：

[1] ACAD SCI GDR, INST PHYS TECH, O-6900 JENA, GERMANY

[2] PORTSMOUTH POLYTECH, DEPT APPL PHYS, PORTSMOUTH PO1 2DZ, HANTS, ENGLAND

[3] UNIV SALFORD, DEPT PURE & APPL PHYS, SALFORD M5 4WT, LANCS, ENGLAND

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1990年 / 26卷 / 05期

关键词：

D O I：

10.1109/20.104875

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：

Spectral dependences of the polar Kerr rotation on a series of the cobalt- and titanium-substituted single crystals of barium hexaferrites were measured in the visible and near infrared region. Kerr rotations obtained on the polished and etched (0001) surfaces were superior to the spectra obtained on the natural growth planes. The largest Kerr rotations exceeding 4 degrees at wavelengths of about 1800 nm were found for molar concentrations of cobalt approximately equal to 0.4. Kerr rotation hysteresis loops displayed small coercive force (500 Oe) and small remanent values with a strong unidirectional character. © 1990 IEEE

引用

页码：2789 / 2791

页数：3

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