718 citations · 7.5k across the 93 of their papers we have counts for
93 papers
Self-dual gauge theory in 2+1d: lattice model and topological phase transitions
Da-Chuan Lu, Chong Wang, Ashvin Vishwanath
Electric-magnetic self-duality of the gauge theory, realized microscopically as a half-lattice-translation exchanging electric charge and magnetic flux, has been an…
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…
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…
Topological Phases with Average Symmetries: the Decohered, the Disordered, and the Intrinsic
Ruochen Ma, Jian-Hao Zhang, Zhen Bi +2
Global symmetries greatly enrich the landscape of topological quantum phases, playing an essential role from topological insulators to fractional quantum Hall effect. Topological p…
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…
Higher-form Symmetries under Weak Measurement
Kaixiang Su, Nayan Myerson-Jain, Chong Wang +2
We aim to address the following question: if we start with a quantum state with a spontaneously broken higher-form symmetry, what is the fate of the system under weak local quantum…
Fractional Chern Insulator in Twisted Bilayer MoTe
Chong Wang, Xiao-Wei Zhang, Xiaoyu Liu +5
A recent experiment has reported the first observation of a zero-field fractional Chern insulator (FCI) phase in twisted bilayer MoTe moiré superlattices [Nature 622, 63-68 (20…
Phonon-Mediated -Wave Superconductivity in the Kagome Metal CsVSb under Pressure
Chongze Wang, Jia Yu, Zhenyu Zhang +1
The nature of the superconducting pairing state in the pristine phase of a compressed kagome metal CsVSb under pressure is studied by the Migdal-Eliashberg formalism and de…
Kekulé Moiré Superlattices
Yusen Ye, Jimin Qian, Xiao-Wei Zhang +3
Moiré superlattices from stacks of van der Waals materials offer an exciting arena in the fields of condensed matter physics and materials science. Typically, these moiré superlatt…
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…
Origin of the large differences in high-pressure stability and superconductivity between ThH9 and ThH18
Shichang Yao, Chongze Wang, Hyunsoo Jeon +5
Recently, the thorium hydride ThH9 possessing an H-rich clathrate structure has been experimentally synthesized to exhibit a superconducting transition temperature Tc of 146 K at 1…
Dynamical Effects from Anomaly: Modified Electrodynamics in Weyl Semimetal
Xuzhe Ying, A. A. Burkov, Chong Wang
We discuss the modified quantum electrodynamics from a time-reversal-breaking Weyl semimetal coupled with a gauge (electromagnetic) field. A key role is played by the soft d…
Average Symmetry-Protected Topological Phases
Ruochen Ma, Chong Wang
Symmetry-protected topological (SPT) phases are many-body quantum states that are topologically nontrivial as long as the relevant symmetries are unbroken. In this work we show tha…
Charge density wave and superconductivity in the kagome metal CsVSb around a pressure-induced quantum critical point
Chongze Wang, Shuyuan Liu, Hyunsoo Jeon +2
Using first-principles density functional theory calculations, we investigate the pressure-induced quantum phase transition (QPT) from the charge density wave (CDW) to the pristine…
Gate-tunable proximity effects in graphene on layered magnetic insulators
Chun-Chih Tseng, Tiancheng Song, Qianni Jiang +11
The extreme versatility of two-dimensional van der Waals (vdW) materials derives from their ability to exhibit new electronic properties when assembled in proximity with dissimilar…
Phase diagram of a bilinear-biquadratic spin-1 model on the triangular lattice from density matrix renormalization group simulations
Aaron Szasz, Chong Wang, Yin-Chen He
We investigate a highly frustrated spin-1 model on the triangular lattice, with nearest- and next-nearest-neighbor antiferromagnetic interactions and nearest-neighbor $(…
Emerging Two-Dimensional Magnetism in Nonmagnetic Electrides Hf2X (X = S, Se, Te)
Shuyuan Liu, Chongze Wang, Hyunsoo Jeon +2
Recent experimental discoveries of two-dimensional (2D) magnets have triggered intense research activities to search for atomically thin magnetic systems. Using first-principles ca…
Light-Induced Ferromagnetism in Moiré Superlattices
Xi Wang, Chengxin Xiao, Heonjoon Park +9
Many-body interactions between carriers lie at the heart of correlated physics. The ability to tune such interactions would open the possibility to access and control complex elect…
Spin Waves and Dirac Magnons in a Honeycomb Lattice Zig-zag Antiferromagnet BaNi2(AsO4)2
Bin Gao, Tong Chen, Chong Wang +5
The topological properties of massive and massless fermionic quasiparticles have been intensively investigated over the past decade in topological materials without magnetism. Rece…
Non-zero momentum requires long-range entanglement
Lei Gioia, Chong Wang
We show that a quantum state in a lattice spin (boson) system must be long-range entangled if it has non-zero lattice momentum, i.e. if it is an eigenstate of the translation symme…
Electron-phonon coupling and superconductivity in an alkaline earth hydride CaH at high pressures
Hyunsoo Jeon, Chongze Wang, Shuyuan Liu +3
Recently, an alkaline earth hydride CaH having a sodalitelike clathrate structure has been experimentally synthesized at megabar pressures with a maximum of 215 K, compar…