621 citations · 3.7k across the 60 of their papers we have counts for
59 papers
Field and Polarization Dependent Quantum Spin Dynamics in Honeycomb Magnet NaCoTeO: Magnetic Excitations and Continuum
Patrick Pilch, Laur Peedu, Anup Kumar Bera +4
We report terahertz spectroscopic measurements of quantum spin dynamics in the spin-1/2 honeycomb magnet NaCoTeO as a function of applied magnetic field with different…
Repulsively bound magnon excitations of a spin-1/2 XXZ chain in a staggered transverse field
Catalin-Mihai Halati, Zhe Wang, Thomas Lorenz +2
We study the excitation spectrum of the one-dimensional spin-1/2 XXZ chain with antiferromagnetic Ising anisotropy across a magnetic quantum phase transition induced by the applica…
Extraordinary surface critical behavior induced by symmetry-protected topological state of a two-dimensional quantum magnet
Zhe Wang, Fan Zhang, Wenan Guo
Using Quantum Monte Carlo simulations, we study spin-1/2 diagonal ladders coupled by ferromagnetic Heisenberg interactions. The model can also be viewed as usual ladders with ferro…
Ultrafast dynamics of optically excited charge carriers in the room-temperature antiferromagnetic semiconductor -MnTe
Changqing Zhu, Patrick Pilch, Anneke Reinold +6
We report on time-resolved optical and terahertz ultrafast spectroscopy of charge-carrier dynamics in the room-temperature antiferromagnetic semiconductor -MnTe. By optically pu…
Determining spin-orbit coupling in graphene by quasiparticle interference imaging
Lihuan Sun, Louk Rademaker, Diego Mauro +7
Inducing and controlling spin-orbit coupling (SOC) in graphene is key to create topological states of matter, and for the realization of spintronic devices. Placing graphene onto a…
Band Gap Opening in Bilayer Graphene-CrCl/CrBr/CrI van der Waals Interfaces
Giulia Tenasini, David Soler-Delgado, Zhe Wang +10
We report experimental investigations of transport through bilayer graphene (BLG)/chromium trihalide (CrX; X=Cl, Br, I) van der Waals interfaces. In all cases, a large charge t…
Bulk and Surface Critical Behaviors of quantum Heisenberg antiferromagnet on a two-dimensional coupled diagonal ladders
Zhe Wang, Fan Zhang, Wenan Guo
Using Quantum Monte Carlo simulations, we study the spin-1/2 Heisenberg model on a two-dimensional lattice formed by coupling diagonal ladders. The model hosts an antiferromagnetic…
Nonequilibrium dynamics of -RuCl -- a time-resolved magneto-optical spectroscopy study
Julian Wagner, Anuja Sahasrabudhe, Rolf Versteeg +5
We present time-resolved magneto-optical spectroscopy on the magnetic Mott-Hubbard-insulating Kitaev spin liquid candidate -RuCl to investigate the nonequilibrium dynamics o…
Magneto-optical study of metamagnetic transitions in the antiferromagnetic phase of -RuCl
Julian Wagner, Anuja Sahasrabudhe, Rolf Versteeg +7
-RuCl is a promising candidate material to realize the so far elusive quantum spin liquid ground state. However, at low temperatures, the coexistence of different exchange i…
Magnetization dependent tunneling conductance of ferromagnetic barriers
Zhe Wang, Ignacio Gutiérrez-Lezama, Dumitru Dumcenco +6
Recent experiments on van der Waals antiferrmagnets such as CrI3, CrCl3 and MnPS3 have shown that using atomically thin layers as tunnel barriers and measuring the temperature (…
Neutron diffraction of field-induced magnon condensation in the spin-dimerized antiferromagnet SrCrO
Alsu Gazizulina, Diana Lucia Quintero-Castro, Zhe Wang +11
In this work, we investigate the evolution and settling of magnon condensation in the spin-1/2 dimer system SrCrO using a combination of magnetostriction in pulse…
Quantum Quench dynamics in XY spin chain with ferromagnetic and antiferromagnetic interactions
Zhe Wang, Pan-Pan Fang, Yu-Liang Xu +4
In this manuscript we investigate the one-dimensional anisotropic XY model with ferromagnetic and antiferromagnetic interactions, which gives more interesting phase diagrams and dy…
Terahertz Magneto-optical investigation of quadrupolar spin-lattice effects in magnetically frustrated Tb2Ti2O7
K. Amelin, Y. Alexanian, U. Nagel +9
The significance of spin-lattice coupling in the phase diagram of the quantum spin-icepyrochlore Tb2Ti2O7 has been a topic of debate for some time. Here, we focus on the aspect of…
Magnetoelectric effect arising from a field-induced pseudo Jahn-Teller distortion in a rare earth magnet
Minseong Lee, Q. Chen, Eun Sang Choi +8
Magnetoelectric materials are attractive for several applications, including actuators, switches, and magnetic field sensors. Typical mechanisms for achieving a strong magnetoelect…
Experimental Observation of Quantum Many-Body Excitations of Symmetry in the Ising Chain Ferromagnet CoNbO
Kirill Amelin, Johannes Engelmayer, Johan Viirok +4
Close to the quantum critical point of the transverse-field Ising spin-chain model, an exotic dynamic spectrum was predicted to emerge upon a perturbative longitudinal field. The d…
Nonequilibrium quasistationary spin disordered state in the Kitaev-Heisenberg magnet -RuCl
R. B. Versteeg, A. Chiocchetta, F. Sekiguchi +9
Excitation by light pulses enables the manipulation of phases of quantum condensed matter. Here, we photoexcite high-energy holon-doublon pairs as a way to alter the magnetic free…
Observation of E8 Particles in an Ising Chain Antiferromagnet
Zhao Zhang, Kirill Amelin, Xiao Wang +9
Near the transverse-field induced quantum critical point of the Ising chain, an exotic dynamic spectrum consisting of exactly eight particles was predicted, which is uniquely descr…
Dynamics of entanglement in the one-dimensional anisotropic XXZ model
Han Zhang, Yu-Liang Xu, Rong-Tao Zhang +4
The dynamics of entanglement in the one-dimensional spin-1/2 anisotropic XXZ model is studied using the quantum renormalization-group method. We obtain the analytical expression of…
Magnetic field effects on the quantum spin liquid behaviors of NaYbS
Jiangtao Wu, Jianshu Li, Zheng Zhang +23
Spin-orbit coupling is an important ingredient to regulate the many-body physics, especially for many spin liquid candidate materials such as rare-earth magnets and Kitaev material…
Determining the phase diagram of atomically thin layered antiferromagnet CrCl
Zhe Wang, Marco Gibertini, Dumitru Dumcenco +4
Changes in the spin configuration of atomically-thin, magnetic van-der-Waals multilayers can cause drastic modifications in their opto-electronic properties. Conversely, the opto-e…
Spin-flop transition in atomically thin MnPS crystals
Gen Long, Hugo Henck, Marco Gibertini +6
The magnetic state of atomically thin semiconducting layered antiferromagnets such as CrI and CrCl can be probed by forming tunnel barriers and measuring their resistance a…
Dispersions of Many-Body Bethe strings
Anup Kumar Bera, Jianda Wu, Wang Yang +9
Complex bound states of magnetic excitations, known as Bethe string, were predicted almost a century ago to exist in one-dimensional quantum magnets 1. The dispersions of the strin…
High-Field Quantum Disordered State in -RuCl3: Spin Flips, Bound States, and a Multi-Particle Continuum
A. Sahasrabudhe, D. A. S. Kaib, S. Reschke +15
Layered -RuCl3 has been discussed as a proximate Kitaev spin liquid compound. Raman and THz spectroscopy of magnetic excitations confirm that the low-temperature antiferromagnet…
Low-temperature monoclinic layer stacking in atomically thin CrI crystals
Nicolas Ubrig, Zhe Wang, Jérémie Teyssier +5
Chromium triiodide, CrI, is emerging as a promising magnetic two-dimensional semiconductor where spins are ferromagnetically aligned within a single layer. Potential applicatio…