THE MAGNETIC-PROPERTIES OF SINGLE-DOMAIN PARTICLES WITH CUBIC ANISOTROPY .2. REMANENCE CURVES

被引:23
作者
WALKER, M [1 ]
MAYO, PI [1 ]
OGRADY, K [1 ]
CHARLES, SW [1 ]
CHANTRELL, RW [1 ]
机构
[1] UNIV KEELE,DEPT PHYS,KEELE ST5 5BG,STAFFS,ENGLAND
关键词
D O I
10.1088/0953-8984/5/17/013
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
A comprehensive study of the remanence curve properties of an assembly of non-interacting single-domain particles with cubic magnetocrystalline anisotropy has been performed. The theoretical calculations presented represent an extension of the zero-temperature analysis of Joffe and Heuberger to include the effects of thermally activated magnetization reversal and particle size distribution. The numerical validity of these computations is completed through the analysis of interaction-sensitive Henkel plots, which confirm the non-interacting nature of the independently calculated remanence curves. The model system shows behaviour with intuition and analogous to similar models for the uniaxial case, with the exception of the expected increase in maximum remanence and decrease in energy barrier, i.e. remanence coercivity.
引用
收藏
页码:2793 / 2808
页数:16
相关论文
共 21 条
[1]   SPIN-GLASS BEHAVIOR IN A FINE PARTICLE SYSTEM [J].
CHANTRELL, RW ;
ELHILO, M ;
OGRADY, K .
IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (04) :3570-3578
[2]   MAGNETIC CHARACTERIZATION OF RECORDING MEDIA [J].
CHANTRELL, RW ;
OGRADY, K .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1992, 25 (01) :1-23
[3]   THE ISOTHERMAL REMANENT MAGNETIZATION OF PARTICULATE MEDIA [J].
CHANTRELL, RW ;
OGRADY, K ;
BRADBURY, A ;
CHARLES, SW ;
HOPKINS, N .
IEEE TRANSACTIONS ON MAGNETICS, 1987, 23 (01) :204-206
[4]   THE ISOTHERMAL REMANENT MAGNETIZATION OF FINE MAGNETIC PARTICLES [J].
CHANTRELL, RW ;
OGRADY, K ;
BRADBURY, A ;
CHARLES, SW ;
POPPLEWELL, J .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1985, 18 (12) :2505-2517
[5]   INFLUENCE OF DENSIFICATION ON REMANENCE, COERCIVITIES AND INTERACTION FIELD OF ELONGATED GAMMA-FE2O3 POWDERS [J].
CORRADI, AR ;
WOHLFARTH, EP .
IEEE TRANSACTIONS ON MAGNETICS, 1978, 14 (05) :861-863
[6]   TEMPERATURE DEPENDENCE OF SINGLE DOMAIN PARTICLE PROPERTIES [J].
GAUNT, P .
PHILOSOPHICAL MAGAZINE, 1968, 17 (146) :263-&
[7]   REMANENCE RELATIONSHIPS AND DOMAIN-WALL PINNING IN FERROMAGNETS [J].
GAUNT, P ;
HADJIPANAYIS, G ;
NG, D .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1986, 54-7 :841-842
[8]   THERMOMAGNETIC CURVES FOR A DISORDERED SYSTEM OF SINGLE-DOMAIN FERROMAGNETIC PARTICLES WITH CUBIC ANISOTROPY [J].
GESHEV, J ;
POPOV, O ;
MASHEVA, V ;
MIKHOV, M .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1990, 92 (02) :185-190
[9]   REMANENCE CURVES FOR A DISORDERED SYSTEM OF 3-AXIAL AND 4-AXIAL FINE PARTICLES - HENKEL-TYPE PLOTS [J].
GESHEV, J ;
MIKHOV, M .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 104 (pt 3) :1569-1570
[10]   REMANENZVERHALTEN UND WECHSELWIRKUNGEN IN HARTMAGNETISCHEN TEILCHENKOLLEKTIVEN [J].
HENKEL, O .
PHYSICA STATUS SOLIDI, 1964, 7 (03) :919-929