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相关论文: Spin freezing induced giant exchange bias in a dop…

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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…

介观与纳米尺度物理 · 物理学 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

The exchange bias (EB) phenomenon has been found in Nd2/3Ca1/3MnO3 perovskite. The phenomenon manifests itself as a negative horizontal shift of magnetization hysteresis loops. The EB phenomenon is evident of an interface exchange coupling…

材料科学 · 物理学 2015-06-17 Elena Fertman , Sergiy Dolya , Vladimir Desnenko , Marcela Kajnakova , Alexander Feher

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…

Exchange bias (EB) as large as ~5.5 kOe is observed in SrLaCo0.5Mn0.5O4 which is the highest ever found in any layered transition metal oxides including Ruddlesden-Popper series. Neutron diffraction measurement rules out long-range magnetic…

Herein, we report the appearance of a large exchange bias (EB) effect in a moderate cooling field (cooling field, H$_{FC}$ = 1 kOe) for the 314-Sr3YCo4O10.5 material. The exchange bias has started to appear near room temperature and reaches…

强关联电子 · 物理学 2018-02-15 Sourav Marik , Prachi Mohanty , Deepak Singh , R P Singh

Zero field cooled spontaneous exchange bias (SEB) is observed in epitaxial La0.7Sr0.3MnO3 (LSMO):NiO self-assembled nanocomposite thin films grown on (001) SrTiO3 single crystal substrate by pulsed laser deposition. SEB is displayed by the…

材料科学 · 物理学 2018-11-29 Gyanendra Panchal , R. J. Choudhary , Manish Kumar , D. M. Phase

The exchange bias (EB) effect is known as a fundamentally and technologically important magnetic property of a magnetic bilayer film. It is manifested as a horizontal shift in a magnetic hysteresis loop of a film subject to cooling in the…

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…

材料科学 · 物理学 2007-12-22 Florin Radu , Hartmut Zabel

We report structural and magnetic properties of multilayers composed of thin layers of the half metallic ferromagnetic Heusler compound Co2MnGe and layers of Au, Cr and the Heusler compound Cu2MnAl. The hysteresis loops measured at low…

材料科学 · 物理学 2009-11-07 K. Westerholt , U. Geiersbach , A. Bergmann

Exchange bias phenomenon is generally ascribed to the exchange coupling at the interfaces between ferromagnetic and antiferromagnetic layers. Here, we propose a bulk form of exchange bias in a single-phase magnet where the coupling between…

强关联电子 · 物理学 2013-06-07 Young Sun , Junzhuang Cong , Yisheng Chai , Liqin Yan , Yuelei Zhao , Shouguo Wang , Wei Ning , Yuheng Zhang

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…

强关联电子 · 物理学 2009-11-09 M. Patra , S. Majumdar , S. Giri

We report the presence of giant spontaneous exchange bias (HSEB) in a hard and soft antiferromagnetic composite of BiFeO3-TbMnO3 (BFO-TMO in 7:3 and 8:2 ratio). The HSEB varies between 5-778Oe, but persists up to room temperature with a…

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…

材料科学 · 物理学 2023-12-29 Xi Zhang , Xiuquan Xia , Qiye Liu , Yonggang He , Le Wang , Junhao Lin , Jia-Wei Mei , Yingchun Cheng , Jun-Feng Dai

Exchange bias (EB) and the training effects (TE) in an antiferromagnetically coupled La0.7Sr0.3MnO3 / SrRuO3 superlattices were studied in the temperature range 1.8 - 150 K. Strong antiferromagnetic (AFM) interlayer coupling is evidenced…

材料科学 · 物理学 2015-06-04 S. Narayana Jammalamadaka , J. Vanacken , V. V. Moshchalkov

Hund's metal is one kind of correlated metal, in which the electronic correlation is strongly influenced by the Hund's interaction. At high temperatures, while the charge and orbital degrees of freedom are quenched, the spin degrees of…

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,…

材料科学 · 物理学 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

The exchange bias (EB) effect, arising from interfacial coupling between ferromagnetic (FM) and antiferromagnetic (AF) layers, induces a unidirectional magnetic anisotropy and underpins a wide range of spintronic functionalities. Extending…

Exchange bias is a horizontal shift of the hysteresis loop observed for a ferromagnetic layer in contact with an antiferromagnetic layer. Since exchange bias is related to the spin structure of the antiferromagnet, for its fundamental…

材料科学 · 物理学 2009-11-07 U. Nowak , A. Misra , K. D. Usadel

We demonstrated an electric field controlled exchange bias (EB) effect accompanied with unipolar resistive switching behavior in the Si/SiO2/Pt/Co/NiO/Pt device. By applying certain voltages, the device displays obvious EB in…

材料科学 · 物理学 2017-10-06 L. J. Wei , Z. Z. Hu , Y. J. Wang , G. X. Du , Y. Yuan , J. Wang , H. Q. Tu , B. You , S. M. Zhou , Y. Hu , J. Du

Spin glass (SG) is a typical magnetic system with frozen random spin orientation at low temperatures. The system exhibits rich physical properties, such as infinite number of ground states, memory effect and aging phenomena. There are two…

无序系统与神经网络 · 物理学 2016-03-23 Tasrief Surungan , Bansawang BJ , Dahlang Tahir