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Spintronics is a field of electronics based on using the electron spin instead of its charge. The recent advance in the manipulation of pure spin currents, i.e. angular momentum transfer not associated to conventional charge currents, has…

Spin current generation through non-relativistic spin splittings, found in uncompensated magnets and d-wave altermagnets, is desirable for low-power spintronics. Such spin currents, however, are symmetry forbidden in conventional collinear…

Materials Science · Physics 2025-12-04 Sajjan Sheoran , Pratibha Dev

The coupling between real-space inhomogeneities coordinates and spin (r-s) provides an alternative route to achieve efficient spin manipulation in spintronics beyond the conventional momentum-spin (k-s) coupling paradigm. Here we…

Mesoscale and Nanoscale Physics · Physics 2025-09-09 Shibo Fang , Zongmeng Yang , Jianhua Wang , Xingyue Yang , Jing Lu , Ching Hua Lee , Xiaotian Wang , Yee Sin Ang

The control and manipulation of the valley and spin degrees of freedom have received great interests in fundamental studies and advanced information technologies. Compared with magnetic means, it is highly desirable to realize more…

Materials Science · Physics 2023-02-22 Li Liang , Ying Yang , Xiaohui Wang , Xiao Li

Nonvolatile control of spin order or spin excitations offers a promising avenue for advancing spintronics; however, practical implementation remains challenging. In this letter, we propose a general framework to realize electrical control…

Materials Science · Physics 2025-01-14 Jinyang Ni , Zhenlong Zhang , Jinlian Lu , Quanchao Du , Zhijun Jiang , Laurent Bellaiche

The spin-to-charge current interconversion in bilayers composed of ferromagnetic and nonmagnetic layers with strong spin-orbit coupling has garnered considerable attention due to its exceptional potential in advancing spintronics devices…

Altermagnets recently came into the spotlight as a new class of magnetic materials, arising as a consequence of specific crystal symmetries. They are characterized by a spin-polarized electronic band structure similar to ferromagnets, but…

The recent realization of photonic topological insulators has brought the discovery of fundamentally new states of light and revolutionary applications such as non-reciprocal devices for photonic diodes and robust waveguides for light…

Optics · Physics 2019-08-05 Xiao-Dong Chen , Jian-Wen Dong

The idea to utilize not only the charge but also the spin of electrons in the operation of electronic devices has led to the development of spintronics, causing a revolution in how information is stored and processed. A novel advancement…

Mesoscale and Nanoscale Physics · Physics 2016-02-10 T. J. Huisman , R. V. Mikhaylovskiy , J. D. Costa , F. Freimuth , E. Paz , J. Ventura , P. P. Freitas , S. Blügel , Y. Mokrousov , Th. Rasing , A. V. Kimel

An impressive success of spintronic applications has been typically realized in metal-based structures which utilize magnetoresistive effects for substantial improvements in the performance of computer hard drives and magnetic random access…

Other Condensed Matter · Physics 2009-11-13 Igor Zutic , Jaroslav Fabian , Steven C. Erwin

Spin-momentum locking (SML) excitons in two-dimensional semiconductors are appealing to programmable optical control of spin-polarized carriers in ultrafast spintronics. To address the current thirsty for long-lived excitons with…

Mesoscale and Nanoscale Physics · Physics 2025-11-05 Jiuyu Sun , Jinzhe Han , Yongping Du , Erjun Kan

A systematic investigation of spin injection behavior in Au/FM (FM = Fe and Ni) multilayers is performed using the superdiffusive spin transport theory. By exciting the nonmagnetic layer, the laser-induced hot electrons may transfer spin…

Mesoscale and Nanoscale Physics · Physics 2023-11-20 Wen-Tian Lu , Zhe Yuan , Xiaohong Xu

Gated bilayer graphene exhibits spin-degenerate gapless states with a topological character localized at stacking domain walls. These states allow for one-dimensional currents along the domain walls. We herein demonstrate that these…

Mesoscale and Nanoscale Physics · Physics 2019-06-19 W. Jaskólski , A. Ayuela

Altermagnetism is a subclass of antiferromagnetism that features spin-polarized electron bands of a non-relativistic origin despite the absence of a net magnetiation in the material. We here theoretically study spin pumping from an…

Mesoscale and Nanoscale Physics · Physics 2024-06-13 Erik Wegner Hodt , Jacob Linder

We evidence the possibility for coherent electrical manipulation of the spin orientation of topologically protected edge states in a low-symmetry quantum spin Hall insulator. By using a combination of ab-initio simulations, symmetry-based…

Momentum-resolved spin-polarized bands are a key ingredient in many proposed spintronic devices, but their existence often relies on lattice commensurability or strong spin-orbit coupling. By a large-scale DFT calculation (up to 4212…

Materials Science · Physics 2024-12-13 Zhigang Song , Xiuying Zhang , Julian Klein , Jonathan Curtis , Frances M. Ross , Prineha Narang

The aim of voltage control of magnetism is to reduce the power consumption of spintronic devices. For a spin valve, the magnetization directions of two ferromagnetic layers determine the giant magnetoresistance magnitude. However, achieving…

Mesoscale and Nanoscale Physics · Physics 2024-05-28 Lujun Wei , Yiyang Zhang , Fei Huang , Jiajv Yang , Jincheng Peng , Yanghui Li , Yu Lu , Jiarui Chen , Tianyu Liu , Yong Pu , Jun Du

We propose a novel ferroelectric switchable altermagnetism effect, the reversal of ferroelectric polarization is coupled to the switching of altermagnetic spin splitting. We demonstrate the design principles for the ferroelectric…

Employing electron spin instead of charge to develop spintronic devices holds the merits of low-power consumption in information technologies. Meanwhile, the demand for increasing speed in spintronics beyond current CMOS technology has…

We demonstrate microwave manipulation of the spin states of electrically injected spin-polarized electrons in silicon. Although the silicon channel is bounded by ferromagnetic metal films, we show that moderate microwave power can be…

Mesoscale and Nanoscale Physics · Physics 2013-12-16 C. C. Lo , J. Li , I. Appelbaum , J. J. L. Morton