119 citations · 445 across the 13 of their papers we have counts for
14 papers
Quantum Phase Transitions and Fractional Quantized Anomalous Hall Insulators in Rhombohedral Graphene
Zach Hadjri, Xinlei Yue, Tonghang Han +10
Fractional quantum anomalous Hall effect (FQAHE) has been discovered in twisted MoTe and rhombohedral graphene/hBN moiré superlattices. Such van der Waals heterostructures feat…
Unified topological phase diagram of quantum Hall and superconducting vortex-lattice states
Daniil S. Antonenko, Liang Fu, Leonid I. Glazman
We present the global topological phase diagram of a two-dimensional electron gas placed in a quantizing magnetic field and proximitized by a superconducting vortex lattice. Our th…
Observation of High-Temperature Dissipationless Fractional Chern Insulator
Heonjoon Park, Weijie Li, Chaowei Hu +13
The fractional quantum anomalous Hall effect has recently been experimentally observed in zero-field fractional Chern insulators (FCI). However, an outstanding challenge is the pre…
Magnetoelectric Control of Helical Light Emission in a Moiré Chern Magnet
Eric Anderson, Heonjoon Park, Kaijie Yang +7
Magnetoelectric effects and their coupling to light helicity are important for both fundamental science and applications in sensing, communication, and data storage. Traditional ap…
Signatures of Chiral Superconductivity in Rhombohedral Graphene
Tonghang Han, Zhengguang Lu, Zach Hadjri +20
Chiral superconductors are unconventional superconducting states that break time reversal symmetry spontaneously and typically feature Cooper pairing at non-zero angular momentum.…
Ferromagnetism and Topology of the Higher Flat Band in a Fractional Chern Insulator
Heonjoon Park, Jiaqi Cai, Eric Anderson +18
The recent observation of the fractional quantum anomalous Hall effect in moiré fractional Chern insulators provides an opportunity to investigate zero magnetic field anyons. To po…
Observation of the dual quantum spin Hall insulator by density-tuned correlations in a van der Waals monolayer
Jian Tang, Thomas Siyuan Ding, Hongyu Chen +25
The convergence of topology and correlations represents a highly coveted realm in the pursuit of novel quantum states of matter. Introducing electron correlations to a quantum spin…
Quantum anomalous Hall crystal at fractional filling of moiré superlattices
D. N. Sheng, Aidan P. Reddy, Ahmed Abouelkomsan +2
We predict the emergence a state of matter with intertwined ferromagnetism, charge order and topology in fractionally filled moiré superlattice bands. Remarkably, these quantum ano…
Designing topology and fractionalization in narrow gap semiconductor films via electrostatic engineering
Tixuan Tan, Aidan P. Reddy, Liang Fu +1
We show that topological flat minibands can be engineered in a class of narrow gap semiconductor films using only an external electrostatic superlattice potential. We demonstrate t…
Wigner Molecular Crystals from Multi-electron Moiré Artificial Atoms
Hongyuan Li, Ziyu Xiang, Aidan P. Reddy +10
Semiconductor moiré superlattices provide a versatile platform to engineer new quantum solids composed of artificial atoms on moiré sites. Previous studies have mostly focused on t…
Intertwined fractional quantum anomalous Hall states and charge density waves
Xue-Yang Song, Chao-Ming Jian, Liang Fu +1
Motivated by the recent experimental breakthrough on the observation of the fractional quantum anomalous Hall (FQAH) effects in semiconductor and graphene moiré materials, we explo…
Large Quantum Anomalous Hall Effect in Spin-Orbit Proximitized Rhombohedral Graphene
Tonghang Han, Zhengguang Lu, Yuxuan Yao +8
The quantum anomalous Hall effect (QAHE) is a robust topological phenomenon featuring quantized Hall resistance at zero magnetic field. We report the QAHE in a rhombohedral pentala…
Fractional Quantum Anomalous Hall Effect in a Graphene Moire Superlattice
Zhengguang Lu, Tonghang Han, Yuxuan Yao +7
The fractional quantum anomalous Hall effect (FQAHE), the analog of the fractional quantum Hall effect1 at zero magnetic field, is predicted to exist in topological flat bands unde…
Band mixing in the quantum anomalous Hall regime of twisted semiconductor bilayers
Ahmed Abouelkomsan, Aidan P. Reddy, Liang Fu +1
Remarkable recent experiments have observed fractional quantum anomalous Hall (FQAH) effects at zero field and unusually high temperatures in twisted semiconductor bilayer MoTe$…