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We investigate the magnetocaloric effect obtained by the rotation of a magnetic field applied to an exchange-coupled multilayer system composed of two different ferromagnetic (FM) materials. We specifically consider a system in which the…

Materials Science · Physics 2024-04-12 Vittorio Basso , Carlo P. Sasso , Martino LoBue , Karl G. Sandeman

The microstructures and interfaces of two-phase vertically aligned nanocomposite (VAN) thin films play a key role in the design of spintronic device architectures and their multifunctional properties. Here, we show how the microstructures…

Current induced spin-orbit torques driven by the conventional spin Hall effect are widely used to manipulate the magnetization. This approach, however, is nondeterministic and inefficient for the switching of magnets with perpendicular…

The interplay among structural, electronic, and magnetic properties of Fe adatoms on the surface of two-dimensional ferroelectric {\alpha}-In$_2$Se$_3$ is investigated using first-principles electronic structure calculations, with a focus…

Materials Science · Physics 2025-10-14 Monirul Shaikh , Aleksander L. Wysocki

Electrical tuning of magnetism is crucial for developing fast, compact, ultra-low power electronic devices. Multiferroics offer significant potential due to their ability to control magnetic via an electric field through magnetoelectric…

Mesoscale and Nanoscale Physics · Physics 2024-09-16 Yingying Wu , Zdenek Sofer , Wei Wang

We report the bias voltage controlled inversions of tunneling magnetoresistance (TMR) in magnetic tunnel junctions composed of Fe3GaTe2 electrodes and hBN tunneling barrier, observed at room temperature. The polarity reversal of TMR occurs…

Mesoscale and Nanoscale Physics · Physics 2025-01-13 Lihao Zhang , Miao He , Xiaoyu Wang , Haodong Zhang , Keying Han , Yonglai Liu , Lei Zhang , Yingchun Cheng , Jie Pan , Zhe Qu , Zhe Wang

The effect of the saturation field on the magnetization reversal of FePt(L10)/FeCo/CoO/FeCo multilayer (ML) has been investigated to understand the origin of asymmetric magnetization reversal and its correlation with exchange bias (EB). In…

Materials Science · Physics 2022-08-09 Sadhana Singh , V. R. Reddy , Dileep Kumar

Room-temperature electrically-tuned coercivity and nonvolatile multi-states magnetization switching is crucial for next-generation low-power 2D spintronics. However, most methods have limited ability to adjust the coercivity of…

Materials Science · Physics 2024-01-03 Gaojie Zhang , Hao Wu , Li Yang , Wen Jin , Bichen Xiao , Wenfeng Zhang , Haixin Chang

Exchange bias is one of the most extensively studied phenomena in magnetism, since it exerts a unidirectional anisotropy to a ferromagnet (FM) when coupled to an antiferromagnet (AFM) and the control of the exchange bias is therefore very…

Materials Science · Physics 2016-07-12 Wei Yuan , Tang Su , Qi Song , Wenyu Xing , Yangyang Chen , Tianyu Wang , Zhangyuan Zhang , Xiumei Ma , Peng Gao , Jing Shi , Wei Han

We investigate electron interferometry of edge states in Topological Insulators. We show that, when inter-boundary coupling is induced at two quantum point contacts of a four terminal setup, both Fabry-P\'erot-like and Aharonov-Bohm-like…

Mesoscale and Nanoscale Physics · Physics 2011-05-16 Fabrizio Dolcini

We investigate the electrical switching of charge and spin transport in a topological insulator nanoconstriction in a four terminal device. The switch of the edge channels is caused by the coupling between edge states which overlap in the…

Mesoscale and Nanoscale Physics · Physics 2013-08-12 F. Romeo , R. Citro , D. Ferraro , M. Sassetti

Electrical-controllable antiferromagnet tunnel junction is a key goal in spintronics, holding immense promise for ultra-dense and ultra-stable antiferromagnetic memory with high processing speed for modern information technology. Here, we…

Applied Physics · Physics 2024-04-02 Lei Han , Xuming Luo , Yingqian Xu , Hua Bai , Wenxuan Zhu , Yuxiang Zhu , Guoqiang Yu , Cheng Song , Feng Pan

Antiferromagnetic materials are promising platforms for the development of ultra-fast spintronics and magnonics due to their robust magnetism, high-frequency relativistic dynamics, low-loss transport, and the ability to support topological…

Symmetry arguments are used to show that a boundary of a magnetoelectric antiferromagnet has an equilibrium magnetization. This magnetization is coupled to the bulk antiferromagnetic order parameter and can be switched along with it by a…

Materials Science · Physics 2010-10-04 K. D. Belashchenko

The electric (E) field control of magnetic properties opens the prospects of an alternative to magnetic field or electric current activation to control magnetization. Multilayers with perpendicular magnetic anisotropy (PMA) have proven to…

To date, endeavors in nanoscale spintronics are dominated by the use of single-electron or single-spin transistors having at their heart a semiconductor, metallic or molecular quantum dot who's localized states are non-spin-degenerate and…

Mesoscale and Nanoscale Physics · Physics 2017-12-12 Ilia N. Sivkov , Oleg O. Brovko , Ivan Rungger , Valeri S. Stepanyuk

Interfacing a ferromagnet with a polarized ferroelectric gate generates a non-uniform, interfacial spin density coupled to the ferroelectric polarization allowing so for an electric field control of effective transversal field to…

Strongly Correlated Electrons · Physics 2017-09-06 Yaojin Li , Min Chen , Jamal Berakdar , Chenglong Jia

Antiferromagnetic (AF) domain walls have recently attracted revived attention, not only in the emerging field of AF spintronics, but also more specifically for offering fast domain wall velocities and dynamic excitations up to the terahertz…

Active thermal management requires advances in thermal switching materials, whose thermal conductivity responds to external stimuli. The electric field, as one of the most convenient and effective stimuli, has shown great potential in…

Materials Science · Physics 2025-11-20 Fanghao Zhang , Guanchun Rui , Yujie Quan , Shantal Adajian , Matthew Delmont , Q. M. Zhang , Bolin Liao

Complementary nature of coercivity enhancement and exchange bias is generalized from the layered systems to ferro-antiferromagnet (F-AF) exchange coupled systems with arbitrary configurations and is proved based on the coherent rotation of…

Materials Science · Physics 2009-11-11 Congxiao Liu , Min Sun , Hideo Fujiwara