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磁性隧道结理论模型的开发与研究

Development and Research of a Theoretical Model of the Magnetic Tunnel Junction.

作者信息

Polyakov Oleg, Amelichev Vladimir, Zhukov Dmitry, Vasilyev Dmitry, Kasatkin Sergey, Polyakov Peter, Kostyuk Dmitry

机构信息

Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia.

Scientific-Manufacturing Complex "Technological Centre", 124498 Moscow, Russia.

出版信息

Sensors (Basel). 2021 Mar 17;21(6):2118. doi: 10.3390/s21062118.

DOI:10.3390/s21062118
PMID:33803044
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8002950/
Abstract

Spin-dependent tunneling structures are widely used in many spintronic devices and sensors. This paper describes the magnetic tunnel junction (MTJ) characteristics caused by the inhomogeneous magnetic field of ferromagnetic layers. The extremely oblate magnetic ellipsoids have been used to mimic these layers. The strong effect of an inhomogeneous magnetic field on the magnetoresistive layers' interaction was demonstrated. The magnetostatic coupling coefficient is also calculated.

摘要

自旋相关隧穿结构广泛应用于许多自旋电子器件和传感器中。本文描述了由铁磁层的非均匀磁场引起的磁隧道结（MTJ）特性。极扁的磁椭球体已被用于模拟这些层。证明了非均匀磁场对磁阻层相互作用的强烈影响。还计算了静磁耦合系数。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a650/8002950/b95e2ed1df04/sensors-21-02118-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a650/8002950/ca632e7d0c39/sensors-21-02118-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a650/8002950/9eded0d98705/sensors-21-02118-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a650/8002950/b95e2ed1df04/sensors-21-02118-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a650/8002950/ca632e7d0c39/sensors-21-02118-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a650/8002950/9eded0d98705/sensors-21-02118-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a650/8002950/b95e2ed1df04/sensors-21-02118-g003.jpg

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本文引用的文献

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Detection of Small Magnetic Fields Using Serial Magnetic Tunnel Junctions with Various Geometrical Characteristics.利用具有不同几何特征的串联磁隧道结检测小磁场。
Sensors (Basel). 2020 Oct 7;20(19):5704. doi: 10.3390/s20195704.
2
Investigation of a Magnetic Tunnel Junction Based Sensor for the Detection of Defects in Reinforced Concrete at High Lift-Off.基于磁隧道结的传感器在高提离下检测钢筋混凝土缺陷的研究。
Sensors (Basel). 2019 Oct 30;19(21):4718. doi: 10.3390/s19214718.
3
Double-Gap Magnetic Flux Concentrator Design for High-Sensitivity Magnetic Tunnel Junction Sensors.
双间隙磁通量集中器设计用于高灵敏度磁隧道结传感器。
Sensors (Basel). 2019 Oct 15;19(20):4475. doi: 10.3390/s19204475.
4
Detection of Magnetomechanical Effect in Structural Steel Using GMR 2nd Order Gradiometer Based Sensors.基于 GMR 二阶梯度传感器的结构钢磁机械效应检测。
Sensors (Basel). 2019 Sep 25;19(19):4147. doi: 10.3390/s19194147.
5
Magnetic nanoparticle sensors.磁性纳米粒子传感器。
Sensors (Basel). 2009;9(10):8130-45. doi: 10.3390/s91008130. Epub 2009 Oct 16.