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We present an exact, analytic solution of the spin dependent quantum transport problem with spin-orbit interaction in a one-dimensional mesoscopic ring with one input and two output leads. We demonstrate that for appropriate parameters…

Quantum Physics · Physics 2008-01-24 Orsolya Kalman , Peter Foldi , Mihaly G. Benedict , F. M. Peeters

Conducting altermagnets have recently emerged as intriguing materials supporting strongly spin-polarized currents without magnetic stray fields. We demonstrate that altermagnets enable three key functionalities, merging superconductivity…

Superconductivity · Physics 2024-10-23 Hans Gløckner Giil , Bjørnulf Brekke , Jacob Linder , Arne Brataas

As an emerging magnetic phase, altermagnets with compensated magnetic order and non-relativistic spin-splitting have attracted widespread attention. Currently, strain engineering is considered to be an effective method for inducing valley…

Materials Science · Physics 2024-10-07 Yun-Qin Li , Yu-Ke Zhang , Xin-Le Lu , Ya-Ping Shao , Zhi-qiang Bao , Jun-Ding Zheng , Wen-Yi Tong , Chun-Gang Duan

Twistronics, the manipulation of Moir\'e superlattices via the twisting of two layers of two-dimensional (2D) materials to control diverse and nontrivial properties, has recently revolutionized the condensed matter and materials physics.…

By means of ab initio calculations and spin-polarized scanning tunneling microscopy experiments we show how to manipulate the local spin-polarization of a ferromagnetic surface by creating a complex energy dependent magnetic structure. We…

We consider a superconducting altermagnet heterostructure and demonstrate that the interplay between altermagnetism and a selective filter of transverse momentum channels enables perfect nonreciprocal spin-polarized currents. We demonstrate…

Superconductivity · Physics 2026-04-23 Pei-Hao Fu , Jun-Feng Liu , Luca Chirolli , Jorge Cayao

It is shown that, for appropriate values of electron energy, the silicene dot can work as a controllable spin polarizer. The spin polarizer can polarize the spin of transmitted electrons from nearly pure down to nearly pure up by changing…

Mesoscale and Nanoscale Physics · Physics 2015-01-19 Hamidreza Simchi , Mahdi Esmaeilzadeh , Hossein Mazidabadi , Mohammad Norouzi

Magnetoelectric coupling is vital for exploring fundamental science and driving the development of high-density memory and energy-efficient spintronic devices. Altermagnets, which merge the benefits of ferromagnets and antiferromagnets,…

Materials Science · Physics 2026-03-03 Pengqiang Dong , Hanbo Sun , Chao Wu , Ping Li

A central goal in spintronics and magnonics is the use of spin waves rather than electrons for efficient information processing. The key to integrate such spintronic circuits with electronic circuits is the ability to inject, control and…

Mesoscale and Nanoscale Physics · Physics 2024-08-28 J. S. Harms , H. Y. Yuan , Rembert A. Duine

Controlling the directionality of surface plasmon polaritons (SPPs) has been widely studied, while the direction of SPPs was always switched by orthogonal polarizations in the reported methods. Here, we present a scheme to control the…

Optics · Physics 2018-07-30 Hailong Zhou , Jinran Qie , Jianji Dong , Xinliang Zhang

Manipulating the electron spin with the aid of spin-orbit coupling (SOC) is an indispensable element of spintronics. Electrostatically gating a material with strong SOC results in an effective magnetic field which can in turn be used to…

In the last few years, some ideas of electric manipulations in ferromagnetic heterostructures have been proposed for developing next generation spintronic devices. Among them, the magnetization switching driven by spin-orbit torque (SOT) is…

Materials Science · Physics 2019-03-27 P. F. Liu , J. Miao , Q. Liu , Z. D. Xu , Z. Y. Ren , K. K. Meng , Y. Wu , J. K. Chen , X. G. Xu , Y. Jiang

Interference of spin-up and spin-down eigenstates depicts spin rotation of electrons, which is a fundamental concept of quantum mechanics and accepts technological challenges for the electrical spin manipulation. Here, we visualize this…

Materials Science · Physics 2016-10-28 Kenta Kuroda , Koichiro Yaji , M. Nakayama , A. Harasawa , Y. Ishida , S. Watanabe , C. -T. Chen , T. Kondo , F. Komori , S. Shin

We proposed a novel and simple multilayer structure to realize the deterministic switching of perpendicularly magnetized layers (Co in our work) by spin orbital torque from the spin Hall Effect in this paper. A pinned layer is introduced,…

Computational Physics · Physics 2017-05-08 Sumei Wang

The coupling of spin and valley physics is nowadays regarded as a promising route toward next-generation spintronic and valleytronic devices. In the aim of engineering functional properties for valleytronic applications, we focus on the…

Strongly Correlated Electrons · Physics 2015-07-22 Kunihiko Yamauchi , Paolo Barone , Tatsuya Shishidou , Tamio Oguchi , Silvia Picozzi

Material systems that exhibit tunable spin-selective conductivity are key components of spintronic technologies. Here we demonstrate a novel type of spin-selective transport, based on the unusual Landau level (LL) sequence observed in…

Mesoscale and Nanoscale Physics · Physics 2023-07-04 En-Min Shih , Qianhui Shi , Daniel Rhodes , Bumho Kim , Kenji Watanabe , Takashi Taniguchi , Kun Yang , James Hone , Cory R. Dean

Altermagnetism exhibits advantages over both ferromagnetic and antiferromagnetic counterparts by enabling spin splitting within antiferromagnetic materials. Currently, it is established that valley polarization in altermagnetism remains…

Materials Science · Physics 2024-10-24 Chen Chen , Xiaoyang He , Qizhen Xiong , Chuye Quan , Haojie Hou , Shilei Ji , Jianping Yang , Xing'ao Li

Multiferroics exhibit significant potential for low-power spintronic devices due to magnetoelectric coupling. Here, we discuss an emerging class of altermagnetic multiferroics, a system demonstrating distinct advantages including zero net…

Materials Science · Physics 2026-03-18 Wei Sun , Changhong Yang , Xiaotian Wang , Shifeng Huang , Zhenxiang Cheng

A key aim in spintronics is to achieve current-induced magnetization switching via spin-orbit torques without external magnetic fields. For this, the focus of recent work has been on introducing controlled lateral gradients across…

The magnetic field of complete spin polarization is calculated in a disorderless single-valley strongly-interacting 2D electron system. In the metallic region above the Wigner-Mott transition, non-equilibrium spin states are predicted,…

Strongly Correlated Electrons · Physics 2014-09-10 V. T. Dolgopolov , A. A. Shashkin