A phenomenological theory of damping in ferromagnetic materials

被引:1994
作者
Gilbert, TL
机构
[1] Armour Res Fdn, Chicago, IL 60616 USA
[2] Argonne Natl Lab, Argonne, IL 60439 USA
关键词
ferromagnetic damping; ferromagnetic materials; magnetic core memories; magnetic domains; magnetic losses; magnetic recording; magnetization processes;
D O I
10.1109/TMAG.2004.836740
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
In 1955, a phenomenological theory of ferromagnetism was well established and had been corroborated by a considerable amount of experimental data. However, there were problems in the phenomenological theory of the dynamics of the magnetization field. The Landau-Lifshitz equation for damping of the motion of the magnetization field could not account for the large noneddy-current damping in thin Permalloy sheets. The problem undertaken herein is a reformulation of the theory in a way that is more consistent with the theory of damping in other physical systems in order to be able to take large damping into account.
引用
收藏
页码:3443 / 3449
页数:7
相关论文
共 32 条
[1]   ELECTROMAGNETIC EFFECTS OF SPIN WAVE RESONANCE IN FERROMAGNETIC METALS [J].
AMENT, WS ;
RADO, GT .
PHYSICAL REVIEW, 1955, 97 (06) :1558-1566
[2]   INSTABILITY IN THE MOTION OF FERROMAGNETS AT HIGH MICROWAVE POWER LEVELS [J].
ANDERSON, PW ;
SUHL, H .
PHYSICAL REVIEW, 1955, 100 (06) :1788-1790
[3]   THE CONCEPT OF SPIN-LATTICE RELAXATION IN FERROMAGNETIC MATERIALS [J].
ANDERSON, PW .
PHYSICAL REVIEW, 1952, 88 (05) :1214-1214
[4]  
[Anonymous], COLLECTED PAPERS
[5]   EINE BEMERKUNG ZUR MASSENTRAGHEIT DER BLOCHWAND [J].
BECKER, R .
ZEITSCHRIFT FUR PHYSIK, 1952, 133 (1-2) :134-139
[6]   On the Theory of the Exchange Problem and the Appearence of Retentive Ferromagnetic [J].
Bloch, F. .
ZEITSCHRIFT FUR PHYSIK, 1932, 74 (5-6) :295-335
[7]   Theory of the approach to magnetic saturation [J].
Brown, WF .
PHYSICAL REVIEW, 1940, 58 (08) :736-743
[8]   POSSIBLE SOURCE OF LINE WIDTH IN FERROMAGNETIC RESONANCE [J].
CLOGSTON, AM ;
SUHL, H ;
WALKER, LR ;
ANDERSON, PW .
PHYSICAL REVIEW, 1956, 101 (02) :903-905
[9]   UBER DIE TRAGHEIT DER WANDE ZWISCHEN WEISSSCHEN BEZIRKEN [J].
DORING, W .
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 1948, 3 (07) :373-379
[10]   MOTION OF INDIVIDUAL DOMAIN WALLS IN A NICKEL-IRON FERRITE [J].
GALT, JK .
BELL SYSTEM TECHNICAL JOURNAL, 1954, 33 (05) :1023-1054