The Loop-Stage-Dependent Exchange Bias Training Effect in FeNi/FeMn Bilayers

Yang M.; Zhang X.H.; Zhao J.G.; You B.; Xu Y.B.; Du J.

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The Loop-Stage-Dependent Exchange Bias Training Effect in FeNi/FeMn Bilayers

机译：FeNi / FeMn双层中取决于循环阶段的交换偏置训练效果

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The loop-stage-dependent exchange bias training effect has been systematically studied in the polycrystalline FeNi/FeMn bilayers. According to the ferromagnet (FM) magnetization states, an entire magnetic hysteresis loop can be divided into four different stages: 1) positive saturation stage; 2) descending branch; 3) negative saturation stage; and 4) ascending branch. The loop-stage-dependent training effect was studied by probing the instant variation of the exchange field and the coercivity after adding a short waiting time on a specific loop-stage. Our experimental results unambiguously show that this training effect strongly depends on the stage that the waiting time is assigned on and the quantity of as well. Based on the macroscopic two-level relaxation model, these phenomena can be well explained by considering different switching probabilities of the interfacial uncompensated antiferromagnetic spins during different FM magnetization reversal processes.

机译：已经在多晶FeNi / FeMn双层中系统研究了依赖于循环阶段的交换偏压训练效果。根据铁磁（FM）的磁化状态，整个磁滞回线可分为四个不同的阶段：1）正饱和阶段； 2）降序分支； 3）负饱和阶段； 4）升序分支。通过在特定的循环台上添加较短的等待时间后，探索交换场的瞬时变化和矫顽力，研究了循环台式的训练效果。我们的实验结果清楚地表明，这种训练效果在很大程度上取决于分配等待时间的阶段以及等待时间的数量。基于宏观两级弛豫模型，可以通过考虑在不同的FM磁化反转过程中界面未补偿反铁磁自旋的不同切换概率来很好地解释这些现象。

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来源
《Magnetics, IEEE Transactions on》 |2015年第11期|1-4|共4页
作者
Yang M.; Zhang X.H.; Zhao J.G.; You B.; Xu Y.B.; Du J.;
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作者单位

Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China;

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正文语种 eng
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关键词
Exchange bias; Exchange bias (EB); Loop-stage dependent; Training effect; loop-stage-dependent; training effect;

机译：交换偏差;交换偏差（EB）;循环阶段相关;训练效果;循环阶段相关;训练效果;

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专利

1. Tuning the exchange bias training effect in top- and bottom-pinning FeNi/FeMn bilayers [J] . M. Yang, J. J. Ge, X. B. Xue, Physica status solidi . 2011,第10期

机译：调整顶部和底部钉扎FeNi / FeMn双层中的交换偏压训练效果
2. Hysteretic behavior of angular dependence of exchange bias in FeNi/FeMn bilayers: A new signature [J] . Z. Shi, T. R. Gao, S. M. Zhou, Journal of Applied Physics . 2008,第7pa3期

机译：FeNi / FeMn双层中交换偏压的角度依赖性的磁滞行为：一个新的特征
3. Training and recovery behaviors of exchange bias in FeNi/Cu/Co/FeMn spin valves at high field sweep rates [J] . D.Z. Yang, A. Kapelrud, M. Saxegaard, Journal of magnetism and magnetic materials . 2012,第19期

机译：FeNi / Cu / Co / FeMn自旋阀中高场扫描速率下交换偏压的训练和恢复行为
4. The loop-stage dependent exchange bias training effect in FeNi/FeMn bilayer [C] . Yang, M., Zhang, X., Zhao, J., IEEE Magnetics Conference . 2015

机译：FeNi / FeMn双层中依赖于循环阶段的交换偏压训练效果
5. Exchange bias training effect in magnetically coupled bilayers. [D] . Polisetty, Srinivas. 2009

机译：磁性耦合双层中的交换偏压训练效果。
6. Omnidirectional zero-field ferromagnetic resonance driven by rotatable anisotropy in FeNi/FeMn bilayers without exchange bias [O] . Wenfeng Wang, Guozhi Chai, Desheng Xue -1

机译：FeNi / FeMn双层中由旋转各向异性驱动的全向零场铁磁共振无交换偏置
7. Oscillatory exchange bias effect in FeNi/Cu/FeMn and FeNi/Cr/FeMn trilayer systems [O] . Mewes Tim, Roos Björn, Demokritov Serguei, 1999

机译：FeNi / Cu / FeMn和FeNi / Cr / FeMn三层系统中的振荡交换偏置效应

The Loop-Stage-Dependent Exchange Bias Training Effect in FeNi/FeMn Bilayers

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