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Perpendicular exchange bias (EB), which combines the perpendicular magnetic anisotropy and the ferromagnetic (FM) - antiferromagnetic (AFM) exchange coupling, is extremely important in the high-density AFM spintronics. However, the…

Materials Science · Physics 2019-03-14 Qu Yang , Zhongqiang Hu , Yao Zhang , Wei Su , Bin Peng , Jingen Wu , Ziyao Zhou , Yun He , Wanzhao Cui , Zhiguang Wang , Ming Liu

Exchange bias is a unidirectional magnetic anisotropy that often arise from interfacial interaction of a ferromagnetic and antiferromagnetic layers. In this article, we show that a metallic layer with spin-orbit coupling can induces an…

Mesoscale and Nanoscale Physics · Physics 2024-11-26 Adam B. Cahaya , Ansell Alvarez Anderson , Anugrah Azhar , Muhammad Aziz Majidi

Exchange bias (EB) is usually observed in systems with interface between different magnetic phases after field cooling. Here we report an unusual phenomenon in which a large EB can be observed in Ni-Mn-In bulk alloys after zero-field…

Materials Science · Physics 2015-05-27 B. M. Wang , Y. Liu , P. Ren , B. Xia , K. B. Ruan , J. B. Yi , J. Ding , X. G. Li , L. Wang

The exploration of exchange bias (EB) on the nanoscale provides a novel approach to improving the anisotropic properties of magnetic nanoparticles for prospective applications in nanospintronics and nanomedicine. However, the physical…

The exchange bias (EB) effect has been observed in magnetic Bi$_{0.9}$Gd$_{0.1}$Fe$_{0.9}$Ti$_{0.1}$O$_3$ nanoparticles. The influence of magnetic field cooling on the exchange bias effect has also been investigated. The magnitude of the…

Mesoscale and Nanoscale Physics · Physics 2015-07-28 M. A. Basith , F. A. Khan , Bashir Ahmmad , Shigeru Kubota , Fumihiko Hirose , D. -T. Ngo , Q. -H. Tran , K. Mølhave

Electrical transport properties as a function of magnetic field and time have been investigated in polycrystalline, Nd_{0.84}Sr_{0.16}CoO_3. A strong exchange bias (EB) effect is observed associated with the fairly large intragranular…

Strongly Correlated Electrons · Physics 2009-11-09 M. Patra , S. Majumdar , S. Giri

It has been shown that the combining of the electrical effect on the exchange bias field with giant magneto-resistance effect of the graphene/ferromagnet hybrid structures reveals a new non-volatile magnetic random access memory device…

Materials Science · Physics 2009-01-09 Y. G. Semenov , J. M. Zavada , K. W. Kim

This work analyzes the behavior of the interface between a ferromagnetic material and an alter-magnet. We use a well-established line of arguments based on electronic mean-field calculations to show that new surface phenomena that lead to…

Materials Science · Physics 2025-05-29 Gaspar De la Barrera , Alvaro S. Nunez

Up to now, for the conventional exchange bias (EB) systems there has been one pinning phase and one pinned phase, and the pinning and pinned phases are inherent to the material and do not mutually transform into each other. Interestingly,…

Materials Science · Physics 2019-05-15 P. Song , L. Ma , G. K. Li , C. M. Zhen , C. Wang , W. H. Wang , E. K. Liu , J. L. Chen , G. H. Wu , Y. H. Xia , J. Zhang , C. M. Xie , H. Li , D. L. Hou

We propose an electric-field-controlled mechanism for magnetization switching assisted solely by the interlayer-exchange coupling (IEC) between the fixed and the free magnets, which are separated by two oxide barriers sandwiching a spacer…

Mesoscale and Nanoscale Physics · Physics 2020-10-02 Shehrin Sayed , Cheng-Hsiang Hsu , Niklas Roschewsky , See-Hun Yang , Sayeef Salahuddin

Perpendicular magnetic tunnel junctions (p-MTJs) switched utilizing bipolar electric fields have extensive applications in energy-efficient memory and logic devices. Voltage-controlled magnetic anisotropy linearly lowers the energy barrier…

The exchange bias (EB) effect was discovered 60 years ago by Meiklejohn and Bean. Meanwhile the EB effect has become an integral part of modern magnetism with implications for basic research and for numerous device applications. The EB…

Materials Science · Physics 2007-12-22 Florin Radu , Hartmut Zabel

We demonstrate a voltage-controlled exchange bias effect in CoFeB/MgO/CoFeB magnetic tunnel junctions that is related to the interfacial Fe(Co)Ox formed between the CoFeB electrodes and the MgO barrier. The unique combination of interfacial…

Exchange bias (EB) refers to a shift of the hysteresis loop along the field axis in materials consisting of ferromagnetic (FM) and antiferromagnetic (AFM) layers, generally after a cooling procedure in high magnetic field. This effect is…

Strongly Correlated Electrons · Physics 2019-10-03 Lei Ding , Lihua Chu , Pascal Manuel , Fabio Orlandi , Meicheng Li , Yanjiao Guo , Zhuohai Liu

We have studied the influence of non-magnetic defects throughout the antiferromagnet Co_{1-y}O on the exchange bias (EB) in epitaxially grown Co_{1-y}O/Co bilayers. These defects are either substitutional or structural (twin boundaries and…

Materials Science · Physics 2007-06-13 M. R . Ghadimi , B. Beschoten , G. Güntherodt

This article reports dependence of exchange bias (EB) effect on interparticle interactions in nanocrystalline Co/CoO core/shell structures, synthesized using conventional sol-gel technique. Analysis via powder X-Ray diffraction (PXRD)…

The exchange bias (EB) effect, pivotal in magnetic data storage and sensing devices, has been observed not only in interfacial regions but also in intrinsic ferromagnetic materials. Here, we've uncovered a robust and stable exchange bias…

Materials Science · Physics 2023-12-29 Xi Zhang , Xiuquan Xia , Qiye Liu , Yonggang He , Le Wang , Junhao Lin , Jia-Wei Mei , Yingchun Cheng , Jun-Feng Dai

Research on the exchange bias (EB) phenomenon has witnessed a flurry of activity during recent years, which stems from its use in magnetic sensors and as stabilizers in magnetic reading heads. EB was discovered in 1956 but it attracted only…

Materials Science · Physics 2007-05-23 Miguel Kiwi

The exchange bias effect is commonly used to shift the coercive field of a ferromagnet. This technique is crucial for the use of magnetic tunnel junctions as logic or memory devices. Therefore, an independent switching of the two…

Materials Science · Physics 2015-05-13 Niclas Teichert , Alexander Boehnke , Anna Behler , Bruno Weise , Anja Waske , Andreas Hütten

Exchange bias (EB) is a cornerstone of modern magnetic memory and sensing technologies. Its extension to the realm of two-dimensional (2D) van der Waals (vdW) magnets holds promise for revolutionary advancements in miniaturized and…

Mesoscale and Nanoscale Physics · Physics 2024-06-05 Jifeng Shao , Xiaolong Yin , Chunhao Bao , Sirong Lu , Xiaoming Ma , Shu Guo , Le Wang , Xi Zhang , Zhiyue Li , Longxiang Li , Yue Zhao , Tingyong Chen
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