Irreversibility of the magnetisation process in ultrathin Pt/Co/Pt films

被引：1
|
作者：
Kisielewski, M
Maziewski, A
Ferré, J
Mathet, V
Chappert, C
机构：
[1] Univ Bialystok, Magnetism Lab, PL-15424 Bialystok, Poland
[2] Univ Paris 11, Phys Solides Lab, UMR 8502, CNRS, F-91405 Orsay, France
[3] Univ Paris 11, Inst Elect Fondamentale, UMR 8622, CNRS, F-91405 Orsay, France
来源：
EUROPEAN MAGNETIC MATERIALS AND APPLICATIONS | 2001年 / 373-3卷
关键词：
magnetic ultrathin films; magnetic domain structures; magnetization reversal processes;
D O I：
10.4028/www.scientific.net/MSF.373-376.121
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetic aftereffect processes and field-induced domain structures are investigated in Pt/Co(h)/Pt ultrathin ferromagnetic films with perpendicular anisotropy (h <1.6 nm) deposited on Si/Si3N4 substrates. Irreversibility in the dynamics of the magnetisation reversal is studied for different Co thickness h, starting from the demagnetised domain state. This behaviour can be well interpreted from dynamic domain observations, implying "Swiss cheese" domain structures consisting of magnetically non-reversed entities into large reversed domains. The irreversibility is much more pronounced near the reorientation critical thickness.
引用
收藏
页码：121 / 124
页数：4
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