Hysteresis and relaxation effects in magnetic materials

被引：1
作者：
Basso, V
机构：
[1] Ist Elettrotecnico Nazl Galileo Ferraris, I-10125 Turin, Italy
[2] INFM, I-10125 Turin, Italy
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2000年 / 36卷 / 05期
关键词：
hysteresis models; thermal relaxation; magnetic viscosity; magnetization processes;
D O I：
10.1109/20.908728
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：
The connection between hysteresis and time effects due to thermal relaxation is studied in the framework of hysteresis modeling. The system with hysteresis is described as the superposition of elementary contributions distributed in energy levels and energy barriers. A set of general laws, connecting loop shapes and Lime relaxation patterns, are derived independently of the details of the distributions. Limits and possible extensions of the approach are discussed in connection with simple models of the magnetization process.
引用
收藏
页码：3176 / 3181
页数：6
相关论文
共 21 条
[1]   Connection between hysteresis and thermal relaxation in magnetic materials [J].
Basso, V ;
Beatrice, C ;
LoBue, M ;
Tiberto, P ;
Bertotti, G .
PHYSICAL REVIEW B, 2000, 61 (02) :1278-1285
[2]   Energetic and thermodynamic aspects of hysteresis [J].
Bertotti, G .
PHYSICAL REVIEW LETTERS, 1996, 76 (10) :1739-1742
[3]  
Bertotti G., 1998, Hysteresis in Magnetism
[4]   Time dependence and mechanisms of magnetization reversal in Fb-Fe-Co films [J].
Brown, SD ;
Street, R ;
Chantrell, RW ;
Haycock, PW ;
OGrady, K .
JOURNAL OF APPLIED PHYSICS, 1996, 79 (05) :2594-2600
[5]   THERMAL FLUCTUATIONS OF FINE FERROMAGNETIC PARTICLES [J].
BROWN, WF .
IEEE TRANSACTIONS ON MAGNETICS, 1979, 15 (05) :1196-1208
[6]   HYSTERESIS PROPERTIES OF ULTRATHIN FERROMAGNETIC-FILMS [J].
BRUNO, P ;
BAYREUTHER, G ;
BEAUVILLAIN, P ;
CHAPPERT, C ;
LUGERT, G ;
RENARD, D ;
RENARD, JP ;
SEIDEN, J .
JOURNAL OF APPLIED PHYSICS, 1990, 68 (11) :5759-5766
[7]   Preisach modeling of aftereffect in a magneto-optical medium with perpendicular magnetization [J].
Fry, RA ;
Reimers, A ;
Bennett, LH ;
Della Torre, E .
PHYSICA B-CONDENSED MATTER, 2000, 275 (1-3) :50-54
[8]   MAGNETIC VISCOSITY AND THERMAL-ACTIVATION ENERGY [J].
GAUNT, P .
JOURNAL OF APPLIED PHYSICS, 1986, 59 (12) :4129-4132
[9]  
Givord D. D., 1996, RARE EARTH IRON PERM, P218
[10]   GRAIN-SIZE DEPENDENCE OF COERCIVITY AND PERMEABILITY IN NANOCRYSTALLINE FERROMAGNETS [J].
HERZER, G .
IEEE TRANSACTIONS ON MAGNETICS, 1990, 26 (05) :1397-1402
123