1.2k citations · 7.6k across the 53 of their papers we have counts for
58 papers
Monolayer van der Waals kagome lattice for high-temperature flat-band physics
Hyungkun Bong, Choongjae Won, Seongyong Lee +26
Kagome lattice materials host a remarkably rich landscape of novel quantum phenomena, all arising from the intrinsic interplay of topology, correlation, and frustration. While prev…
Extended strange metal and superconductivity in partially filled moiré Hubbard bands
Yiyu Xia, Yichi Zhang, Zhongdong Han +7
Moiré semiconductors provide a physical realization of the Hubbard model. Bandwidth-tuned Mott transitions and complex phase diagrams mimicking those of high-temperature supercondu…
Pairing from repulsive interactions in twisted WSe2 from functional renormalization
Hannes Braun, Dumitru Călugăru, Pietro M. Bonetti +9
Motivated by the observation of superconductivity in twisted bilayer WSe over an extended range of displacement fields, reaching from the correlated insulator down to zero fiel…
Strongly coupled ultracompressed self-cavity plasmon polaritons at millikelvin temperatures
Luojia Zhang, Andrew T. Pierce, Xuepeng Wang +7
Van der Waals heterostructures exhibit self-cavity resonances from sub-terahertz to terahertz frequencies and thus offer an attractive route toward realizing cavity-modified phases…
Competing Chern states revealed by quasiparticle charging in moiré rhombohedral graphene
Hongyuan Li, Zuhan Geng, Junseok Seo +13
Moiré materials realize a versatile platform for exploring the physics of fractional Chern insulators (FCIs). The recently observed evolution from FCIs to an extended quantum anoma…
Trion Hall effect in electron-hole double layers
Raghav Chaturvedi, Phuong X. Nguyen, Patrick Knüppel +4
The realization of Coulomb coupled electron-hole double layers in 2D semiconductor heterostructures has enabled the thermodynamic and transport studies of equilibrium exciton fluid…
Stacking-order-dependent electronic properties of MoTe2/WSe2 moiré bilayers
Zhongdong Han, Wenjin Zhao, Eegene Clara Chung +17
Transition metal dichalcogenide (TMD) moiré bilayers have realized a wide range of strongly correlated and topological phenomena. The physics in these materials is often sensitive…
Engineering topological flat bands in -valley moiré systems with Ising-type SOC: twisted 1T-ZrS and 1T-SnSe
Hanqi Pi, Yves H. Kwan, Haoyu Hu +8
Twisted moiré superlattices hosting topological flat bands provide a platform to explore the interplay between topology and correlations. Here we investigate topological band struc…
Magnetic-field-induced superconductivity in hexalayer rhombohedral graphene
Jinghao Deng, Jiabin Xie, Hongyuan Li +5
In conventional superconductors, superconductivity is generally suppressed by external magnetic fields due to spin-singlet pairing. Here, we report signatures of in-plane-magnetic-…
Evidence of topological Kondo insulating state in MoTe2/WSe2 moiré bilayers
Zhongdong Han, Yiyu Xia, Zhengchao Xia +6
Topological Kondo insulators (TKIs) are topologically protected insulating states induced not by single-particle band inversions, but by the Kondo interaction between itinerant ele…
Quantum oscillations in a dipolar excitonic insulator
Phuong X. Nguyen, Raghav Chaturvedi, Bo Zou +5
Quantum oscillations in magnetization or resistivity are a defining feature of metals subject to an external magnetic field. The phenomenon is generally not expected in insulators…
A New Moiré Platform Based on M-Point Twisting
Dumitru Călugăru, Yi Jiang, Haoyu Hu +9
We introduce a new class of moiré systems and materials based on monolayers with triangular lattices and low-energy states at the M points of the Brillouin zone. These M-point moir…
Correlated states controlled by tunable van Hove singularity in moiré WSe2
Patrick Knüppel, Jiacheng Zhu, Yiyu Xia +7
Twisted bilayers of transition metal dichalcogenide semiconductors have enabled the discovery of superconductivity, ferromagnetism, correlated insulators and a series of new topolo…
Interlayer Fermi polarons of excited exciton states in quantizing magnetic fields
Huiying Cui, Qianying Hu, Xuan Zhao +9
The study of exciton-polarons has offered profound insights into the many-body interactions between bosonic excitations and their immersed Fermi sea within layered heterostructures…
Unconventional superconductivity in twisted bilayer WSe2
Yiyu Xia, Zhongdong Han, Kenji Watanabe +3
Moiré materials have enabled the realization of flat electron bands and quantum phases that are driven by strong correlations associated with flat bands. Superconductivity has been…
Tuning exciton emission via ferroelectric polarization at a heterogeneous interface between a monolayer transition metal dichalcogenide and a perovskite oxide membrane
Jaehong Choi, Kevin J. Crust, Lizhong Li +9
We demonstrate the integration of a thin BaTiO (BTO) membrane with monolayer MoSe in a dual gate device that enables in-situ manipulation of the BTO ferroelectric polarizat…
Observation of the fractional quantum spin Hall effect in moiré MoTe2
Kaifei Kang, Bowen Shen, Yichen Qiu +4
Quantum spin Hall (QSH) insulators are two-dimensional electronic materials that have a bulk band gap like an ordinary insulator but have topologically protected pairs of edge mode…
Observation of the double quantum spin Hall phase in moiré WSe2
Kaifei Kang, Yichen Qiu, Kenji Watanabe +3
Quantum spin Hall (QSH) insulators are a topologically protected phase of matter in two dimensions that can support non-dissipative spin transport. A hallmark of the phase is a pai…
A degenerate trion liquid in atomic double layers
Phuong X. Nguyen, Raghav Chaturvedi, Liguo Ma +5
Trions are a three-particle bound state of electrons and holes. Experimental realization of a trion liquid in the degenerate quantum limit would open a wide range of phenomena in q…
Emergence of ferromagnetism at the onset of moiré Kondo breakdown
Wenjin Zhao, Bowen Shen, Zui Tao +9
The interaction of a lattice of localized magnetic moments with a sea of conduction electrons in Kondo lattice models induces rich quantum phases of matter, such as Fermi liquids w…
Perfect Coulomb drag in a dipolar excitonic insulator
Phuong X. Nguyen, Liguo Ma, Raghav Chaturvedi +4
Excitonic insulators (EIs), arising in semiconductors when the electron-hole binding energy exceeds the band gap, are a solid-state prototype for bosonic phases of matter. Unlike t…
Observation of spin polarons in a frustrated moiré Hubbard system
Zui Tao, Wenjin Zhao, Bowen Shen +5
The electron's kinetic energy plays a pivotal role in magnetism. While virtual electron hopping promotes antiferromagnetism in an insulator, the real process usually favors ferroma…
Optical readout of the chemical potential of two-dimensional electrons
Zhengchao Xia, Yihang Zeng, Bowen Shen +5
The chemical potential u of an electron system is a fundamental property of a solid. A precise measurement of u plays a crucial role in understanding the electron interaction and q…
Integer and fractional Chern insulators in twisted bilayer MoTe2
Yihang Zeng, Zhengchao Xia, Kaifei Kang +7
Chern insulators, which are the lattice analogs of the quantum Hall states, can potentially manifest high-temperature topological orders at zero magnetic field to enable next-gener…