266 citations · 1.2k across the 24 of their papers we have counts for
24 papers
Spin-orbit magnetism in altermagnets
Ruojia Wang, Yuntian Liu, Renzheng Xiong +2
While the anomalous Hall effect was proposed as a transport fingerprint of altermagnets, it originates from the spin-orbit coupling-induced net magnetization, corresponding to a di…
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…
Unconventional Spintronics from Chiral Perovskites
Yuntian Liu, Reshna Shrestha, Konstantin Denisov +4
Spintronic devices typically employ heterostructures with ferromagnets which break time-reversal symmetry and have non-vanishing magnetization. With the growing class of materials…
Emergent Multiferroic Altermagnets and Spin Control via Noncollinear Molecular Polarization
Ziye Zhu, Yuntian Liu, Xunkai Duan +5
Altermagnets, with spin splitting and vanishing magnetization, have been attributed to many fascinating phenomena and potential applications. In particular, integrating ferroelectr…
Movable Dirac Points with Ferroelectrics: Kink States and Berry Curvature Dipoles
Konstantin S. Denisov, Yuntian Liu, Igor Žutić
Two-dimensional (2D) Dirac states and Dirac points with linear dispersion are the hallmark of graphene, topological insulators, semimetals, and superconductors. Lowering a symmetry…
Symmetry Classification of Magnetic Orders using Oriented Spin Space Groups
Yuntian Liu, Xiaobing Chen, Yutong Yu +3
Magnetism has witnessed remarkable progress in recent decades, largely driven by its potential for next-generation storage devices. However, the classification of magnetic orders,…
Symmetry Classification for Alternating Excitons in Two-Dimensional Altermagnets
Jiayu David Cao, Konstantin S. Denisov, Yuntian Liu +1
Excitons, bound electron-holes states, often dominate the optical response of two-dimensional (2D) materials and reflect their inherent properties, including spin-orbit coupling, m…
Sliding ferroelectric control of unconventional magnetism in stacked bilayers
Yongqian Zhu, Mingqiang Gu, Yuntian Liu +4
The control of unconventional magnetism, which displays ferromagnetism-like properties with compensated magnetization, has drawn intense attention for advancing antiferromagnetic s…
Ferroelectric switchable altermagnetism
Mingqiang Gu, Yuntian Liu, Haiyuan Zhu +5
We propose a novel ferroelectric switchable altermagnetism effect, the reversal of ferroelectric polarization is coupled to the switching of altermagnetic spin splitting. We demons…
Antiferroelectric Altermagnets: Antiferroelectricity Alters Magnets
Xunkai Duan, Jiayong Zhang, Ziye Zhu +4
Magnetoelectric coupling is crucial for uncovering fundamental phenomena and advancing technologies in high-density data storage and energy-efficient devices. The emergence of alte…
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…
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…
Catalog of Unconventional Magnons in Collinear Magnets
Xiaobing Chen, Yuntian Liu, Pengfei Liu +5
Topological magnons have garnered significant interest for their potential in both fundamental research and device applications, owing to their exotic, uncharged, yet topologically…
Enumeration and representation theory of spin space groups
Xiaobing Chen, Jun Ren, Yanzhou Zhu +7
Those fundamental physical properties, such as phase transitions, Weyl fermions, and spin excitation, in all magnetic ordered materials, were ultimately believed to rely on the sym…
Unconventional spin textures emerging from a universal symmetry theory of spin-momentum locking
Yuntian Liu, Jiayu Li, Pengfei Liu +1
Spin textures, i.e., the distribution of spin polarization vectors in reciprocal space, exhibit diverse patterns determined by symmetry constraints, resulting in a variety of spint…
Spectroscopic signature of obstructed surface states in SrInP
Xiang-Rui Liu, Hanbin Deng, Yuntian Liu +13
The century-long development of surface sciences has witnessed the discoveries of a variety of quantum states. In the recently proposed "obstructed atomic insulators", insulators w…
Chern-insulator phase in antiferromagnets
Yuntian Liu, Jiayu Li, Qihang Liu
The long-sought Chern insulators that manifest quantum anomalous Hall effect are typically considered to occur solely in ferromagnets. Here, we theoretically predict the realizabil…
Van der Waals engineering of ultrafast carrier dynamics in magnetic heterostructures
Paulina Majchrzak, Yuntian Liu, Klara Volckaert +10
Heterostructures composed of the intrinsic magnetic topological insulator MnBiTe and its non-magnetic counterpart BiTe host distinct surface electronic band structu…
Pressure-tuned intralayer exchange in superlattice-like MnBi2Te4/(Bi2Te3)n topological insulators
Jifeng Shao, Yuntian Liu, Meng Zeng +13
The magnetic structures of MnBi2Te4(Bi2Te3)n can be manipulated by tuning the interlayer coupling via the number of Bi2Te3 spacer layers n, while the intralayer ferromagnetic (FM)…
Distinct Topological Surface States on the Two Terminations of MnBiTe
Xuefeng Wu, Jiayu Li, Xiao-Ming Ma +20
The recent discovered intrinsic magnetic topological insulator MnBi2Te4 have been met with unusual success in hosting emergent phenomena such as the quantum anomalous Hall effect a…
Strongly Gapped Topological Surface States on Protected Surfaces of Antiferromagnetic MnBiTe and MnBiTe
Kyle N. Gordon, Hongyi Sun, Chaowei Hu +8
The search for materials to support the Quantum Anomalous Hall Effect (QAHE) have recently centered on intrinsic magnetic topological insulators (MTIs) including MnBiTe or…
A van der Waals antiferromagnetic topological insulator with weak interlayer magnetic coupling
Chaowei Hu, Xiaoqing Zhou, Pengfei Liu +11
Magnetic topological insulators (TI) provide an important material platform to explore quantum phenomena such as quantized anomalous Hall (QAH) effect and Majorana modes, etc. Thei…