Effect of bilayer repeats on magnetic properties of Au-buffered Co/Ni multilayers with perpendicular magnetic anisotropy

被引：7

作者：

Liu, Yueyue ^{[1
]}

Wang, Xiangqian ^{[1
,2
]}

Xie, Hongkang ^{[1
]}

Feng, Hongmei ^{[1
]}

Li, Xiaolei ^{[1
]}

Wu, Huiliang ^{[1
]}

Zhu, Zengtai ^{[1
]}

Huang, Yi ^{[1
]}

Liu, Wenshu ^{[1
]}

Han, Genliang ^{[2
]}

Wang, Jianbo ^{[1
,3
]}

Liu, Qingfang ^{[1
]}

机构：

[1] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Gansu, Peoples R China

[2] Gansu Acad Sci, Inst Sensor Technol, Key Lab Sensor & Sensor Technol, Lanzhou 730000, Gansu, Peoples R China

[3] Lanzhou Univ, Minist Educ, Key Lab Special Funct Mat & Struct Design, Lanzhou 730000, Gansu, Peoples R China

来源：

PHYSICS LETTERS A | 2019年 / 383卷 / 34期

基金：

中国国家自然科学基金;

关键词：

Co/Ni multilayers; PMA; Static magnetic properties; Dynamic magnetic properties; FERROMAGNETIC-RESONANCE; FILMS;

D O I：

10.1016/j.physleta.2019.125986

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of bilayer repeats (N) on the static and dynamic magnetic properties of Co/Ni multilayers was investigated. The effective perpendicular magnetic anisotropy constant of multilayers drops from 1.08 x 10(6) erg/cm(3) to 0.78 x 10(6) erg/cm(3) with N increasing from 5 to 11. For Co/Ni multilayers with N <= 7, sharp magnetization switching was observed. In contrast, Co/Ni multilayers with N >= 9 have a long tail in the hysteresis loop. Ferromagnetic resonance measurements show that intrinsic Gilbert damping changes from 0.021 to 0.016 with increase in N and is inversely proportional to N. This study provides a deep understanding and effective control of magnetic properties of Co/Ni multilayers for spintronics devices. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：5

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