90 citations · 654 across the 23 of their papers we have counts for
23 papers
Non-Hermitian and Liouvillian skin effects in magnetic systems
Xin Li, Mohamed Al Begaowe, Shu Zhang +1
The non-Hermitian skin effect (NHSE) has emerged as a hallmark of non-Hermitian physics, with far-reaching implications for transport, topology, and sensing. While recent works hav…
Quantum Imaging of Magnetic Phase Transitions and Spin Fluctuations in Intrinsic Magnetic Topological Nanoflakes
Nathan J. McLaughlin, Chaowei Hu, Mengqi Huang +6
Topological materials featuring exotic band structures, unconventional current flow patterns, and emergent organizing principles offer attractive platforms for the development of n…
Intertwining of lasing and superradiance under spintronic pumping
Oksana Chelpanova, Alessio Lerose, Shu Zhang +3
We introduce a quantum optics platform featuring the minimal ingredients for the description of a spintronically pumped magnon condensate, which we use to promote driven-dissipativ…
A generalized model of magnon kinetics and subgap magnetic noise
Haocheng Fang, Shu Zhang, Yaroslav Tserkovnyak
Magnetic noise spectroscopy provides a noninvasive probe of spin dynamics in magnetic materials. We consider two-dimensional magnetically ordered insulators with magnon excitations…
Sleuthing out exotic quantum spin liquidity in the pyrochlore magnet CeZrO
Anish Bhardwaj, Shu Zhang, Han Yan +3
The search for quantum spin liquids (QSL) -- topological magnets with fractionalized excitations -- has been a central theme in condensed matter and materials physics. While theori…
Bell-state generation for spin qubits via dissipative coupling
Ji Zou, Shu Zhang, Yaroslav Tserkovnyak
We theoretically investigate the dynamics of two spin qubits interacting with a magnetic medium. A systematic formal framework for this qubit-magnet hybrid system is developed in t…
Flavors of Magnetic Noise in Quantum Materials
Shu Zhang, Yaroslav Tserkovnyak
The complexity of electronic band structures in quantum materials offers new charge-neutral degrees of freedom stable for transport, a promising example being the valley (axial) de…
Concentration Behavior of Ground States for -Critical Schrödinger Equation with a Spatially Decaying Nonlinearity
Yong Luo, Shu Zhang
We consider the following time-independent nonlinear -critical Schrödinger equation \[ -Δu(x)+V(x)u(x)-a|x|^{-b}|u|^{1+\frac{4-2b}{N}}=μu(x)\,\ \hbox{in}\,\ \mathbb{R}^N, \] w…
On the anomalous low-resistance state and exceptional Hall component in hard-magnetic Weyl nanoflakes
Qingqi Zeng, Gangxu Gu, Gang Shi +7
Magnetic topological materials, which combine magnetism and topology, are expected to host emerging topological states and exotic quantum phenomena. In this study, with the aid of…
Biasing topological charge injection in topological matter
Mostafa Tanhayi Ahari, Shu Zhang, Ji Zou +1
We explore the interplay between topologies in the momentum and real spaces to formulate a thermodynamic description of nonequilibrium injection of topological charges under extern…
Quantum Sensing of Spin Transport Properties of an Antiferromagnetic Insulator
Hailong Wang, Shu Zhang, Nathan J. McLaughlin +6
Antiferromagnetic insulators (AFIs) are of significant interest due to their potential to develop next-generation spintronic devices. One major effort in this emerging field is to…
Topological transport of deconfined hedgehogs in magnets
Ji Zou, Shu Zhang, Yaroslav Tserkovnyak
We theoretically investigate the dynamics of magnetic hedgehogs, which are three-dimensional topological spin textures that exist in common magnets, focusing on their transport pro…
Energy storage in magnetic textures driven by vorticity flow
Dalton Jones, Ji Zou, Shu Zhang +1
An experimentally feasible energy-storage concept is formulated based on vorticity (hydro)dynamics within an easy-plane insulating magnet. The free energy, associated with the magn…
Antiferromagnet-Based Neuromorphics Using Dynamics of Topological Charges
Shu Zhang, Yaroslav Tserkovnyak
We propose a spintronics-based hardware implementation of neuromorphic computing, specifically, the spiking neural network, using topological winding textures in one-dimensional an…
Multiphase Magnetism in Yb2Ti2O7
A. Scheie, J. Kindervater, S. Zhang +7
We document the coexistence of ferro- and anti-ferromagnetism in pyrochlore using three neutron scattering techniques on stoichiometric crystals: elastic neutron…
SU(3) Topology of Magnon-Phonon Hybridization in 2D Antiferromagnets
Shu Zhang, Gyungchoon Go, Kyung-Jin Lee +1
Magnon-phonon hybrid excitations are studied theoretically in a two-dimensional antiferromagnet with an easy axis normal to the plane. We show that two magnon bands and one phonon…
Quantum statistics of vortices from a dual theory of the XY ferromagnet
Sayak Dasgupta, Shu Zhang, Ibrahima Bah +1
We extend the well-known mapping between the easy-plane ferromagnet and electrostatics in spatial dimensions to dynamical and quantum phenomena in a spacetime. Ferrom…
Dynamical structure factor of the three-dimensional quantum spin liquid candidate NaCaNiF
Shu Zhang, Hitesh J. Changlani, Kemp W. Plumb +2
We study the spin-1 pyrochlore material NaCaNiF with a combination of molecular dynamics simulations, stochastic dynamical theory and linear spin wave theory. The dynamical…
Ferromagnetic domain wall as a nonreciprocal string
Shu Zhang, Oleg Tchernyshyov
We present a simple model of a domain wall in a thin-film ferromagnet. A domain wall is represented as a nonreciprocal string, on which transverse waves propagate with different sp…
Continuum of quantum fluctuations in a three-dimensional Heisenberg magnet
K. W. Plumb, Hitesh J. Changlani, A. Scheie +7
Conventional crystalline magnets are characterized by symmetry breaking and normal modes of excitation called magnons with quantized angular momentum . Neutron scattering co…
Charge and spin dynamics in the one-dimensional and models
Shu Zhang, Michael Karbach, Gerhard Müller +1
The impact of the spin-flip terms on the (static and dynamic) charge and spin correlations in the Luttinger-liquid ground state of the 1D model is assessed by comparison with…
Order-parameter fluctuations in the frustrated Heisenberg model on the square lattice
Shu Zhang, Gerhard Müller
The dynamics of the two-dimensional Heisenberg model with competing nearest-neighbor and next-nearest-neighbor interactions is explored via the recurs…
Impact of criticality and phase separation on the spin dynamics of the one-dimensional t-J model
Shu Zhang, Gerhard Müller, Joachim Stolze
The recursion method is used to determine the T=0 spin dynamic structure factor S_{zz}(q,ω) in the Luttinger liquid state and in the phase-separated state of the one-dimensional t-…