1.4k citations · 2.9k across the 24 of their papers we have counts for
24 papers
Layer-Hybridized Wigner Crystals in MoSe2/WS2 Moiré Superlattice
Tianyi Ouyang, Yuze Meng, Li Yan +11
Transition metal dichalcogenide moiré heterobilayers with type-II band alignment provide a versatile platform for layer-polarized generalized Wigner crystals, in which strong Coulo…
Valley-polarized Exitonic Mott Insulator in WS2/WSe2 Moiré Superlattice
Zhen Lian, Yuze Meng, Lei Ma +14
Strongly enhanced electron-electron interaction in semiconducting moiré superlattices formed by transition metal dichalcogenides (TMDCs) heterobilayers has led to a plethora of int…
Exciton Superposition across Moiré States in a Semiconducting Moiré Superlattice
Zhen Lian, Dongxue Chen, Yuze Meng +9
Moiré superlattices of semiconducting transition metal dichalcogenides (TMDCs) enable unprecedented spatial control of electron wavefunctions in an artificial lattice with periodic…
Measurements of Correlated Insulator Gaps in a Transition Metal Dichalcogenide Moiré Superlattice
Xiong Huang, Dongxue Chen, Zhen Lian +8
Moiré superlattices of transitional metal dichalcogenides exhibit strong electron-electron interaction that has led to experimental observations of Mott insulators and generalized…
Quadrupolar Excitons and Hybridized Interlayer Mott Insulator in a Trilayer Moiré Superlattice
Zhen Lian, Dongxue Chen, Lei Ma +13
Transition metal dichalcogenide (TMDC) moiré superlattices, owing to the moiré flatbands and strong correlation, can host periodic electron crystals and fascinating correlated phys…
A van der Waals Interface Hosting Two Groups of Magnetic Skyrmions
Yingying Wu, Brian Francisco, Wei Wang +9
Multiple magnetic skyrmion phases add an additional degree of freedom for skyrmion based ultrahigh-density spin memory devices. Extending the field to two-dimensional van der Waals…
Evidence for equilibrium excitons and exciton condensation in monolayer WTe2
Bosong Sun, Wenjin Zhao, Tauno Palomaki +14
A single monolayer of the layered semimetal WTe2 behaves as a two-dimensional topological insulator, with helical conducting edge modes surrounding a bulk state that becomes insula…
Electric control of a canted-antiferromagnetic Chern insulator
Jiaqi Cai, Dmitry Ovchinnikov, Zaiyao Fei +11
The interplay between band topology and magnetism can give rise to exotic states of matter. For example, magnetically doped topological insulators can realize a Chern insulator tha…
Moiré Imaging in Twisted Bilayer Graphene Aligned on Hexagonal Boron Nitride
Xiong Huang, Lingxiu Chen, Shujie Tang +6
Moiré superlattices (MSL) formed in angle-aligned bilayers of van der Waals materials have become a promising platform to realize novel two-dimensional electronic states. Angle-ali…
Intertwined Topological and Magnetic Orders in Atomically Thin Chern Insulator MnBi2Te4
Dmitry Ovchinnikov, Xiong Huang, Zhong Lin +15
The interplay between band topology and magnetic order plays a key role in quantum states of matter. MnBi2Te4, a van der Waals magnet, has recently emerged as an exciting platform…
Determination of the spin axis in quantum spin Hall insulator monolayer WTe2
Wenjin Zhao, Elliott Runburg, Zaiyao Fei +9
Evidence for the quantum spin Hall (QSH) effect has been reported in several experimental systems in the form of approximately quantized edge conductance. However, the most fundame…
Correlated Insulating States at Fractional Fillings of the WS2/WSe2 Moiré Lattice
Xiong Huang, Tianmeng Wang, Shengnan Miao +9
Moiré superlattices of van der Waals materials, such as twisted graphene and transitional metal dichalcogenides, have recently emerged as a fascinating platform to study strongly c…
Current-induced CrI3 surface spin-flop transition probed by proximity magnetoresistance in Pt
Tang Su, Mark Lohmann, Junxue Li +9
By exploiting proximity coupling, we probe the spin state of the surface layers of CrI3, a van der Waals magnetic semiconductor, by measuring the induced magnetoresistance (MR) of…
Coexistence of Magnetic Orders in Two-Dimensional Magnet CrI
Ben Niu, Tang Su, Brian A. Francisco +12
The magnetic properties in two-dimensional van der Waals materials depend sensitively on structure. CrI3, as an example, has been recently demonstrated to exhibit distinct magnetic…
Probing Magnetism in Insulating Cr2Ge2Te6 by Induced Anomalous Hall Effect in Pt
Mark Lohmann, Tang Su, Ben Niu +10
Two-dimensional ferromagnet Cr2Ge2Te6 (CGT) is so resistive below its Curie temperature that probing its magnetism by electrical transport becomes extremely difficult. By forming h…
Imaging Quantum Spin Hall Edges in Monolayer WTe2
Yanmeng Shi, Joshua Kahn, Ben Niu +9
A two-dimensional (2D) topological insulator (TI) exhibits the quantum spin Hall (QSH) effect, in which topologically protected spin-polarized conducting channels exist at the samp…
Measurement of Surface Acoustic Wave Resonances in Ferroelectric Domains by Microwave Microscopy
Scott R. Johnston, Yongliang Yang, Yong-Tao Cui +7
Surface Acoustic Wave (SAW) resonances were imaged within a closed domain in the ferroelectric LiTaO via scanning Microwave Impedance Microscopy (MIM). The MIM probe is used fo…
Unconventional Correlation between Quantum Hall Transport Quantization and Bulk State Filling in Gated Graphene Devices
Yong-Tao Cui, Bo Wen, Eric Y. Ma +8
We report simultaneous transport and scanning microwave impedance microscopy to examine the correlation between transport quantization and filling of the bulk Landau levels in the…
Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2
Yi Zhang, Tay-Rong Chang, Bo Zhou +13
Quantum systems in confined geometries are host to novel physical phenomena. Examples include quantum Hall systems in semiconductors and Dirac electrons in graphene. Interest in su…
Direct Imaging of Dynamic Glassy Behavior in a Strained Manganite Film
Worasom Kundhikanjana, Zhigao Sheng, Yongliang Yang +10
Complex many-body interaction in perovskite manganites gives rise to a strong competition between ferromagnetic metallic and charge ordered phases with nanoscale electronic inhomog…
Unexpected edge conduction in HgTe quantum wells under broken time reversal symmetry
Eric Yue Ma, M. Reyes Calvo, Jing Wang +16
The realization of quantum spin Hall (QSH) effect in HgTe quantum wells (QWs) is considered a milestone in the discovery of topological insulators. The QSH edge states are predicte…
Network analyzer measurements of spin transfer torques in magnetic tunnel junctions
Lin Xue, Chen Wang, Yong-Tao Cui +3
We demonstrate a simple network-analyzer technique to make quantitative measurements of the bias dependence of spin torque in a magnetic tunnel junction. We apply a microwave curre…
Resonance Measurement of Nonlocal Spin Torque in a Three-Terminal Magnetic Device
Lin Xue, Chen Wang, Yong-Tao Cui +5
A pure spin current generated within a nonlocal spin valve can exert a spin transfer torque on a nanomagnet. This nonlocal torque enables new design schemes for magnetic memory dev…
Time-resolved detection of spin-transfer-driven ferromagnetic resonance and spin torque measurement in magnetic tunnel junctions
Chen Wang, Yong-Tao Cui, Jordan A. Katine +2
Several experimental techniques have been introduced in recent years in attempts to measure spin transfer torque in magnetic tunnel junctions (MTJs). The dependence of spin torque…