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基于生长条件的FeNi/FeMn双层膜磁化反转机制的复杂研究

Complex Study of Magnetization Reversal Mechanisms of FeNi/FeMn Bilayers Depending on Growth Conditions.

作者信息

Gritsenko Christina, Lepalovskij Vladimir, Volochaev Mikhail, Komanický Vladimir, Gorkovenko Aleksandr, Pazniak Hanna, Gazda Maria, Andreev Nikolai, Rodionova Valeria

机构信息

Research and Education Center "Smart Materials and Biomedical Applications", Immanuel Kant Baltic Federal University, Gaidara str., 6, 236041 Kaliningrad, Russia.

Solid State Magnetism Department, Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Yekaterinburg, Russia.

出版信息

Nanomaterials (Basel). 2022 Apr 1;12(7):1178. doi: 10.3390/nano12071178.

DOI:10.3390/nano12071178
PMID:35407296
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9000860/
Abstract

Magnetization reversal processes in the NiFe/FeMn exchange biased structures with various antiferromagnetic layer thicknesses (0-50 nm) and glass substrate temperatures (17-600 °C) during deposition were investigated in detail. Magnetic measurements were performed in the temperature range from 80 K up to 300 K. Hysteresis loop asymmetry was found at temperatures lower than 150 K for the samples with an antiferromagnetic layer thickness of more than 10 nm. The average grain size of FeMn was found to increase with the AFM layer increase, and to decrease with the substrate temperature increase. Hysteresis loop asymmetry was explained in terms of the exchange spring model in the antiferromagnetic layer.

摘要

详细研究了在沉积过程中具有不同反铁磁层厚度（0 - 50纳米）和玻璃衬底温度（17 - 600°C）的NiFe/FeMn交换偏置结构中的磁化反转过程。在80 K至300 K的温度范围内进行了磁性测量。对于反铁磁层厚度大于10纳米的样品，在低于150 K的温度下发现了磁滞回线不对称性。发现FeMn的平均晶粒尺寸随反铁磁层厚度增加而增大，随衬底温度升高而减小。根据反铁磁层中的交换弹簧模型解释了磁滞回线不对称性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ecc/9000860/ed29a810aa7d/nanomaterials-12-01178-g011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ecc/9000860/62f56582e9fd/nanomaterials-12-01178-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ecc/9000860/a29763eb9006/nanomaterials-12-01178-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ecc/9000860/be188e2f727b/nanomaterials-12-01178-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ecc/9000860/ed29a810aa7d/nanomaterials-12-01178-g011.jpg

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本文引用的文献

1
Omnidirectional zero-field ferromagnetic resonance driven by rotatable anisotropy in FeNi/FeMn bilayers without exchange bias.在没有交换偏置的FeNi/FeMn双层膜中，由可旋转各向异性驱动的全向零场铁磁共振。
Sci Rep. 2017 May 2;7(1):1341. doi: 10.1038/s41598-017-01639-x.
2
Electric field induced reversible 180° magnetization switching through tuning of interfacial exchange bias along magnetic easy-axis in multiferroic laminates.通过在多铁性层压板中沿磁易轴调节界面交换偏置实现电场诱导的可逆180°磁化翻转。
Sci Rep. 2015 Nov 18;5:16480. doi: 10.1038/srep16480.
3
Hysteretic behavior of angular dependence of exchange bias in FeNi/FeMn bilayers.
FeNi/FeMn双层膜中交换偏置角依赖性的磁滞行为。
Phys Rev Lett. 2007 Aug 3;99(5):057201. doi: 10.1103/PhysRevLett.99.057201. Epub 2007 Jul 30.
4
Origin of the asymmetric magnetization reversal behavior in exchange-biased systems: competing anisotropies.交换偏置系统中不对称磁化反转行为的起源：竞争各向异性
Phys Rev Lett. 2005 Jul 29;95(5):057204. doi: 10.1103/PhysRevLett.95.057204. Epub 2005 Jul 27.
5
Creation of an antiferromagnetic exchange spring.反铁磁交换弹簧的创建。
Phys Rev Lett. 2004 Jun 18;92(24):247201. doi: 10.1103/PhysRevLett.92.247201. Epub 2004 Jun 14.
6
Asymmetry in elementary events of magnetization reversal in a ferromagnetic/antiferromagnetic bilayer.铁磁/反铁磁双层中磁化反转基本事件的不对称性。
Phys Rev Lett. 2000 Jan 24;84(4):765-8. doi: 10.1103/PhysRevLett.84.765.