6 papers
Identifying Oriented Spin Space Groups and Related Physical Properties Using an Online Platform FINDSPINGROUP
Yutong Yu, Xiaobing Chen, Yanzhou Zhu +5
Unconventional magnets that combine antiferromagnetic structures with ferromagnetic-like responses are essential for the development of next-generation spintronics. Their emergent…
Topological Charge Quadrupole Protected by Spin-Orbit U(1) Quasi-Symmetry in Antiferromagnet NdBiPt
Ao Zhang, Xiaobing Chen, Jiayu Li +3
The interplay of symmetry and topology in crystal solids has given rise to various elementary excitations as quasiparticles. Among these, those with significant Berry-phase-related…
Magnetic geometry induced quantum geometry and nonlinear transports
Haiyuan Zhu, Jiayu Li, Xiaobing Chen +2
The combination of quantum geometry and magnetic geometry in magnets excites diverse phenomena, some critical for antiferromagnetic spintronics. However, very few material platform…
Orbital doublet driven even-spin Chern insulators
Lu Liu, Yuntian Liu, Jiayu Li +2
Quantum spin Hall insulators hosting edge spin currents hold great potential for low-power spintronic devices. In this paper, we present a universal approach to achieve a high and…
Quantum spin Hall effect protected by spin U(1) quasisymmetry
Lu Liu, Yuntian Liu, Jiayu Li +2
Quantum spin Hall (QSH) effect, where electrons with opposite spin channels are deflected to opposite sides of a two-dimensional system with a quantized conductance, was believed t…
Group Theory on Quasisymmetry and Protected Near Degeneracy
Jiayu Li, Ao Zhang, Yuntian Liu +1
In solid state systems, group representation theory is powerful in characterizing the behavior of quasiparticles, notably the energy degeneracy. While conventional group theory is…