880 citations · 4.4k across the 66 of their papers we have counts for
67 papers
Raman magnon spectroscopy of local interactions and ground state selection in
Xiang Li, Scott E. Cooper, Ahmed E. Fahmy +7
Competing and coupled spin and charge interactions in quantum materials lead to a variety of ordered states where local configurations preferentially influence the long-range order…
Vison crystals, chiral and crystalline phases in the Yao-Lee model
Muhammad Akram, Emilian Marius Nica, Yuan-Ming Lu +1
We study the phase diagram of the Yao-Lee model with Kitaev-type spin-orbital interactions in the presence of Dzyaloshinskii-Moriya interactions and external magnetic fields. Unlik…
Rotational Symmetry Protected Edge and Corner States in Abelian topological phases
Naren Manjunath, Abhinav Prem, Yuan-Ming Lu
Spatial symmetries can enrich the topological classification of interacting quantum matter and endow systems with non-trivial strong topological invariants (protected by internal s…
Magnetic fragmentation and fractionalized Goldstone modes in a bilayer quantum spin liquid
Aayush Vijayvargia, Emilian Marius Nica, Roderich Moessner +2
We study the phase diagram of a bilayer quantum spin liquid model with Kitaev-type interactions on a square lattice. We show that the low energy limit is described by a -flux Hu…
Spin wavepackets in the Kagome ferromagnet FeSn: propagation and precursors
Changmin Lee, Yue Sun, Linda Ye +6
The propagation of spin waves in magnetically ordered systems has emerged as a potential means to shuttle quantum information over large distances. Conventionally, the arrival time…
Theory of topological defects and textures in two-dimensional quantum orders with spontaneous symmetry breaking
Yan-Qi Wang, Chunxiao Liu, Yuan-Ming Lu
We consider two-dimensional (2d) quantum many-body systems with long-range orders, where the only gapless excitations in the spectrum are Goldstone modes of spontaneously broken co…
Detecting symmetry fractionalization in gapped quantum spin liquids by magnetic impurities
Shuangyuan Lu, Yuan-Ming Lu
We study the Kondo effect of spin-1/2 magnetic impurities in gapped Z2 spin liquids on two-dimensional lattices. We find that if the impurity is placed at a high-symmetry location,…
An efficient material search for room temperature topological magnons
Mohammed J. Karaki, Xu Yang, Archibald J. Williams +4
Topologically protected magnon surface states are highly desirable as an ideal platform to engineer low-dissipation spintronics devices. However, theoretical prediction of topologi…
Emergent XY* transition driven by symmetry fractionalization and anyon condensation
Michael Schuler, Louis-Paul Henry, Yuan-Ming Lu +1
Anyons in a topologically ordered phase can carry fractional quantum numbers with respect to the symmetry group of the considered system, one example being the fractional charge of…
Unconventional quantum phase transitions in a one-dimensional Lieb-Schultz-Mattis system
Wayne Zheng, D. N. Sheng, Yuan-Ming Lu
We study quantum phases and phase transitions in a one-dimensional interacting fermion system with a Lieb-Schultz-Mattis (LSM) type anomaly. Specifically, the inversion symmetry en…
Entanglement negativity at the critical point of measurement-driven transition
Bowen Shi, Xin Dai, Yuan-Ming Lu
We study the entanglement behavior of a random unitary circuit punctuated by projective measurements at the measurement-driven phase transition in one spatial dimension. We numeric…
Distinct magneto-Raman signatures of spin-flip phase transitions in CrI3
Amber McCreary, Thuc T. Mai, Franz G. Utermohlen +16
The discovery of 2-dimensional (2D) materials, such as CrI3, that retain magnetic ordering at monolayer thickness has resulted in a surge of research in 2D magnetism from both pure…
Generalized Lieb-Schultz-Mattis theorem on bosonic symmetry protected topological phases
Shenghan Jiang, Meng Cheng, Yang Qi +1
We propose and prove a family of generalized Lieb-Schultz-Mattis (LSM) theorems for symmetry protected topological (SPT) phases on boson/spin models in any dimensions. The "convent…
Chiral spin liquid with spinon Fermi surfaces in spin- triangular Heisenberg model
Shou-Shu Gong, Wayne Zheng, Mac Lee +2
We study the interplay of competing interactions in spin- triangular Heisenberg model through tuning the first- (), second- (), and third-neighbor () couplings.…
Spontaneous symmetry breaking from anyon condensation
Marcel Bischoff, Corey Jones, Yuan-Ming Lu +1
In a physical system undergoing a continuous quantum phase transition, spontaneous symmetry breaking occurs when certain symmetries of the Hamiltonian fail to be preserved in the g…
Intrinsically interacting topological crystalline insulators and superconductors
Alex Rasmussen, Yuan-Ming Lu
Motivated by recent progress in crystalline symmetry protected topological (SPT) phases of interacting bosons, we study topological crystalline insulators/superconductors (TCIs) of…
Classification and construction of higher-order symmetry protected topological phases of interacting bosons
Alex Rasmussen, Yuan-Ming Lu
Motivated by the recent discovery of higher-order topological insulators, we study their counterparts in strongly interacting bosons: `higher-order symmetry protected topological (…
Field induced quantum spin liquid with spinon Fermi surfaces in the Kitaev model
Hong-Chen Jiang, Chang-Yan Wang, Biao Huang +1
Recent experimental evidence for a field-induced quantum spin liquid (QSL) in -RuCl calls for an understanding for the ground state of honeycomb Kitaev model under a magneti…
Topological nature of step edge states on the surface of topological crystalline insulator PbSnSe
Davide Iaia, Chang-Yan Wang, Yulia Maximenko +5
In addition to novel surface states, topological insulators can also exhibit robust gapless states at crystalline defects. Step edges constitute a class of common defects on the su…
Magnon band topology in spin-orbital coupled magnets: classification and application to -RuCl
Fuyan Lu, Yuan-Ming Lu
In spite of flourishing studies on the topology of spin waves, a generic framework to classify and compute magnon band topology in non-collinear magnets is still missing. In this w…
Symmetry Enforced Chiral Hinge States and Surface Quantum Anomalous Hall Effect in Magnetic Axion Insulator
Changming Yue, Yuanfeng Xu, Zhida Song +4
A universal mechanism to generate chiral hinge states in the ferromagnetic axion insulator phase is proposed, which leads to an exotic transport phenomena, the quantum anomalous Ha…
Strong and Tunable Spin Lifetime Anisotropy in Dual-Gated Bilayer Graphene
Jinsong Xu, Tiancong Zhu, Yunqiu Kelly Luo +2
We report the discovery of a strong and tunable spin lifetime anisotropy with excellent spin lifetimes up to 7.8 ns in dual-gated bilayer graphene. Remarkably, this realizes the ma…
Topological Dirac Semimetal Na3Bi Films in the Ultrathin Limit via Alternating Layer Molecular Beam Epitaxy
Igor V. Pinchuk, Thaddeus J. Asel, Andrew Franson +6
Ultrathin films of Na3Bi on insulating substrates are desired for opening a bulk band gap and generating the quantum spin Hall effect from a topological Dirac semimetal, though con…
High-Temperature Majorana Corner States
Qiyue Wang, Cheng-Cheng Liu, Yuan-Ming Lu +1
Majorana bound states often occur at the end of 1D topological superconductor or at the Josephson junction mediated by a helical edge state. Validated by a new bulk invariant a…