Modification of Magnetic Properties of a CoPt Alloy by Ion Irradiation

被引：4
|
作者：
Kalentyeva, I. L. [1 ]
Vikhrova, O. V. [1 ]
Danilov, Yu. A. [1 ]
Dorokhin, M. V. [1 ]
Dudin, Yu. A. [1 ]
Zdoroveyshchev, A. V. [1 ]
Kudrin, A. V. [1 ]
Temiryazeva, M. P. [2 ]
Temiryazev, A. G. [2 ]
Nikitov, S. A. [3 ,4 ,5 ]
Sadovnikov, A. V. [3 ,4 ]
机构：
[1] Natl Res Lobachevsky State Univ Nizhny Novgorod, Res Inst Phys & Technol, Nizhnii Novgorod 603950, Russia
[2] Russian Acad Sci, Kotelnikov Inst Radioengn & Elect, Fryazino Branch, Fryazino 141190, Moscow Oblast, Russia
[3] Natl Res Chernyshevsky Saratov State Univ, Metamat Lab, Saratov 410012, Russia
[4] Russian Acad Sci, Kotelnikov Inst Radioengn & Elect, Moscow 125009, Russia
[5] Moscow Inst Phys & Technol, Dolgoprudnyi 141701, Moscow Oblast, Russia
来源：
PHYSICS OF THE SOLID STATE | 2019年 / 61卷 / 09期
基金：
俄罗斯基础研究基金会;
关键词：
electron-beam evaporation; ferromagnetic alloy; ion irradiation; isolated circle domains;
D O I：
10.1134/S1063783419090105
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The effect of ion irradiation on magnetic properties of films of the ferromagnetic CoPt alloy fabricated by electron-beam evaporation has been studied. It is found that the coercive force decreases and the lateral component of the easy-magnetization axis increases as the He+ ion fluence increases from 1 x 10(13) to 1 x 10(16) cm(-2). It is shown by magnetic-force microscopy and the Mandelstam-Brillouin spectroscopy that the formation of isolated circle domains which are magnetic skirmions in the CoPt layer is activated at certain ion-irradiation fluence (3 x 10(14) cm(-2)).
引用
收藏
页码：1646 / 1651
页数：6
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