Stability of ferrimagnetic multilayers

被引：2
作者：
Dantas, AL
Vieira, SR
Carriço, AS
机构：
[1] Univ Fed Rio Grande do Norte, Dept Fis Teor & Expt, BR-59078970 Natal, RN, Brazil
[2] Univ Estado Rio Grande do Norte, Dept Fis, BR-59600900 Mossoro, RN, Brazil
[3] Univ Fed Sergipe, Dept Fis, BR-49100000 Aracaju, SE, Brazil
来源：
SOLID STATE COMMUNICATIONS | 2004年 / 132卷 / 06期
关键词：
multilayers; surface phase transitions;
D O I：
10.1016/j.ssc.2004.08.001
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We study the field induced instability of the ground state of ferrimagnetic multilayers consisting of a stacking alternating two different uniaxial ferromagnetic layers. For multilayers with even number of layers N, we obtain analytical expressions for the critical fields in terms of the magnetic parameters (anisotropies, and interlayer exchange coupling), for any value of N. The critical fields are calculated from the energy fluctuations for small variations in the equilibrium magnetic profile. The form of the hysteresis curves is discussed, using the expressions of the critical fields. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：383 / 388
页数：6
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