Domain wall relaxation frequency and magnetocrystalline anisotropy constant in Ni-Zn ferrites

被引:16
作者
Valenzuela, R [1 ]
Irvine, JTS [1 ]
机构
[1] UNIV ST ANDREWS,ST ANDREWS KY16 9ST,FIFE,SCOTLAND
关键词
anisotropy constant; frequency measurements; wall relaxation;
D O I
10.1016/0304-8853(96)00241-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The frequency behavior of polycrystalline ferrites with composition Zn0.64Ni0.36Fe2O4 was investigated in the 100 Hz to 13 MHz frequency and 300-900 K temperature ranges. A comparison of the thermal behavior of the domain wall relaxation frequency with the magnetocrystalline anisotropy constant exhibited a linear relationship. These results are interpreted in terms of the restoring force factor for wall bulging. We explore the possibility of using frequency measurements to investigate the anisotropy constant in polycrystalline samples.
引用
收藏
页码:386 / 387
页数:2
相关论文
共 9 条
[1]   EQUATION-OF-MOTION OF DOMAIN-WALLS AND EQUIVALENT-CIRCUITS IN SOFT FERROMAGNETIC MATERIALS [J].
AGUILARSAHAGUN, G ;
QUINTANA, P ;
AMANO, E ;
IRVINE, JTS ;
VALENZUELA, R .
JOURNAL OF APPLIED PHYSICS, 1994, 75 (10) :7000-7002
[2]   DOMAIN-WALL RELAXATION IN AMORPHOUS RIBBONS [J].
AMANO, E ;
VALENZUELA, R ;
IRVINE, JTS ;
WEST, AR .
JOURNAL OF APPLIED PHYSICS, 1990, 67 (09) :5589-5591
[3]   TEMPERATURE EFFECT ON DOMAIN-WALL DAMPING IN AN AMORPHOUS ALLOY [J].
AROCA, C ;
LOPEZ, E ;
SANCHEZ, P .
PHYSICAL REVIEW B, 1984, 30 (07) :4024-4027
[4]   THE INITIAL SUSCEPTIBILITY OF FERRITES - A QUANTITATIVE THEORY [J].
BOUCHAUD, JP ;
ZERAH, PG .
JOURNAL OF APPLIED PHYSICS, 1990, 67 (09) :5512-5514
[5]   THE FRICTION TERM AND THE ENERGY TERM IN THE BULGED WALL GLOBUS MODEL [J].
ESCOBAR, MA ;
MAGANA, LF ;
VALENZUELA, R .
JOURNAL OF APPLIED PHYSICS, 1982, 53 (03) :2692-2694
[6]  
GLOBUS A, 1975, IEEE T MAGN, V11, P1301
[7]  
GYORGY EM, 1975, TREATISE SOLID STATE, V2, P395
[8]  
VALENZUELA R, 1992, J APPL PHYS, V72, P11468
[9]  
VONGROENOU AB, 1967, J APPL PHYS, V38, P1133