718 citations · 1.8k across the 17 of their papers we have counts for
9 papers · 1 filter
Gate-tunable antiferromagnetic Chern insulator in twisted bilayer transition metal dichalcogenides
Xiaoyu Liu, Chong Wang, Xiao-Wei Zhang +2
A series of recent experimental works on twisted MoTe homobilayers have unveiled an abundance of exotic states in this system. Valley-polarized quantum anomalous Hall states ha…
Observation of Fractionally Quantized Anomalous Hall Effect
Heonjoon Park, Jiaqi Cai, Eric Anderson +17
The integer quantum anomalous Hall (QAH) effect is a lattice analog of the quantum Hall effect at zero magnetic field. This striking transport phenomenon occurs in electronic syste…
Light Driven Spontaneous Phonon Chirality and Magnetization in Paramagnets
Yafei Ren, Mark Rudner, Di Xiao
Spin-phonon coupling enables the mutual manipulation of phonon and spin degrees of freedom in solids. In this study, we reveal the inherent nonlinearity within this coupling. Using…
Fermi Surface Evolution and Anomalous Hall Effect in an Ideal Type-II Weyl Semimetal
Qianni Jiang, Johanna C. Palmstrom, John Singleton +11
Weyl semimetals (WSMs) are three-dimensional topological materials that exhibit fascinating properties due to the presence of Weyl nodes in their band structure. However, existing…
Superlattice Engineering of Topology in Massive Dirac Fermions
Nishchay Suri, Chong Wang, Benjamin M. Hunt +1
We show that a superlattice potential can be employed to engineer topology in massive Dirac fermions in systems such as bilayer graphene, moiré graphene-boron nitride, and transiti…
Gate-tunable phonon magnetic moment in bilayer graphene
Xiao-Wei Zhang, Yafei Ren, Chong Wang +2
We develop a first-principles quantum scheme to calculate the phonon magnetic moment in solids. As a showcase example, we apply our method to study gated bilayer graphene, a materi…
Signatures of Fractional Quantum Anomalous Hall States in Twisted MoTe2 Bilayer
Jiaqi Cai, Eric Anderson, Chong Wang +13
The interplay between spontaneous symmetry breaking and topology can result in exotic quantum states of matter. A celebrated example is the quantum anomalous Hall (QAH) state, whic…
Electrically Controlled Anomalous Hall Effect and Orbital Magnetization in Topological Magnet MnBi2Te4
Ruobing Mei, Yi-Fan Zhao, Chong Wang +4
In this work, we propose an intrinsic mechanism to understand the even-odd effect, namely the opposite signs of the anomalous Hall resistance and the different shapes of hysteresis…
Thermal Hall effect in a van der Waals triangular magnet FeCl2
Chunqiang Xu, Caitlin Carnahan, Heda Zhang +4
Thermal transport is a pivotal probe for studying low-energy, charge-neutral quasi-particles in insulating magnets. In this Letter, we report an observation of large magneto-therma…