15 papers
Symmetry-Enforced Ferroelectric Switching of Two-Dimensional Altermagnetism
Jiangyu Zhao, Yibo Liu, Guoli Wu +4
Altermagnetism features strong momentum-dependent spin splitting despite zero net magnetization, offering a transformative platform for next-generation spintronics. However, the no…
Floquet-Engineered Odd-Parity Altermagnetic Higher-Order Topology in a Two-Dimensional Antiferromagnet CrCH
Xiaorong Zou, Hyeon Suk Shin, Baibiao Huang +5
Periodic driving provides a platform to dynamically tailor quantum states of matter, yet its impact on symmetry-protected topological phases remains incompletely understood. Here,…
Second-order topology in two-dimensional azulenoid kekulene carbon lattices
Xiaorong Zou, Hyeon Suk Shin, Chang-Jong Kang +5
The discovery of higher-order topological insulator (HOTI) has established a new paradigm for understanding symmetry-constrained boundary electronic states. Here, based on first-pr…
Symmetry-dictated switching of antiferromagnetic magnon transport in 2D multiferroics
Yibo Liu, Jiale Wang, Jiexiang Wang +4
While antiferromagnetic magnons in two-dimensional (2D) materials hold immense promise for high-frequency spintronics, achieving their efficient active control remains a critical c…
Symmetry-Driven Electrical Switching of Anisotropic Skyrmion Hall Effect in Altermagnets
Wenhui Du, Kaiying Dou, Ying Dai +3
Controlling the skyrmion Hall effect (SkHE) is pivotal for developing topological spintronics but typically relies on magnetic field reversal. Here, we demonstrate a general strate…
Moire Topological Magnetism Twist-Engineered from 2D Spin Spirals
Zhonglin He, Kaiying Dou, Wenhui Du +3
Topological magnetism, characterized by topologically protected spin textures, offers rich physics and transformative prospects for spintronics. However, its stabilization typicall…
Ordering Mixed-Q Topological Magnetism into Lattice via Moire Engineering
Xiudong Wang, Zhonglin He, Kaiying Dou +3
Topological magnetic lattices offer a fertile ground for exploring fundamental physics and developing novel spintronic devices. However, current research is predominantly confined…
Magnonic Quantum Spin Hall Effect with Chiral Magnon Transport in Bilayer Altermagnets
Bo Yuan, Yingxi Bai, Ying Dai +2
Altermagnetism has attracted considerable interest, yet its associated spintronic phenomena have so far been largely confined to electronic systems. In this work, we uncover a univ…
Altermagnetic Skyrmions in 2D Lattices Exhibiting Anisotropic Skyrmion Hall Effect
Kaiying Dou, Zhonglin He, Wenhui Du +3
Anisotropic skyrmion Hall effect (A-SkHE) in two-dimensional (2D) magnetic systems represents a captivating phenomenon in condensed-matter physics and materials science. While conv…
Light-Induced Spin Slanting in 2D Multiferroic Magnet
Jiangyu Zhao, Yangyang Feng, Kaiying Dou +4
Controlling spin orientation of two-dimensional (2D) materials has emerged as a frontier of condensed-matter physics, resulting in the discovery of various phases of matter. Howeve…
Ultrafast laser driven ferromagnetic-antiferromagnetic skyrmion switching in 2D topological magnet
Kaiying Dou, Wenhui Du, Zhonglin He +3
Light-spin coupling is an attractive phenomenon from the standpoints of fundamental physics and device applications, and has spurred rapid development recently. Whereas the current…
Gate-Controllable Quadri-Layertronics in 2D Multiferroic Antiferromagnet
Ting Zhang, Mingsheng Wang, Xilong Xu +2
Layertronics that manifests layer Hall effect is typically considered to intrinsically possess binary physics. Using symmetry arguments and a low-energy kp model, we show that the…
Ferro-Valleytricity with In-Plane Magnetization
Yibo Liu, Yangyang Feng, Ying Dai +2
Ferro-valleytricity, a fundamental phenomenon that manifests spontaneous valley polarization, is generally considered to occur in two-dimensional (2D) materials with out-of-plane m…
Coupling multi-space topologies in 2D ferromagnetic lattice
Zhonglin He, Wenhui Du, Kaiying Dou +3
Topology can manifest topological magnetism (e.g., skyrmion and bimeron) in real space and quantum anomalous Hall (QAH) state in momentum space, which have changed the modern conce…
Ferroelectrovalley in Two-Dimensional Multiferroic Lattices
Jiangyu Zhao, Yangyang Feng, Ying Dai +2
Engineering valley index is essential and highly sought for valley physics, but currently it is exclusively based on the paradigm of the challenging ferrovalley with spin-orientati…