FIELD-DEPENDENT RF-ABSORPTION SPECTRA OF PARTICULATE MAGNETIC RECORDING MATERIALS

被引：2

作者：

HOON, SR

LAWSON, GR

THOMPSON, F

DEAN, B

CHANTRELL, RW

机构：

[1] LANCASHIRE POLYTECH,DEPT PHYS & ASTRON,PRESTON PR1 2TQ,ENGLAND

[2] UNIV KEELE,DEPT PHYS,KEELE ST5 5BG,STAFFS,ENGLAND

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1992年 / 104卷 / pt 2期

关键词：

D O I：

10.1016/0304-8853(92)90445-T

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Swept frequency absorption (SFA) has been studied in particulate recording materials from 0.2 MHz to 40 GHz and in fields (B) of up to 2.4 T. Line shapes have been computed as a function of damping parameter-alpha employing the Landau-Lifshitz equation and Stoner-Wohlfarth model. Experimentally we find alpha = gamma-B(K)/tau-0 to be dependent upon particle texture and moment alignment with field B.

引用

页码：967 / 968

页数：2

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