842 citations · 3.3k across the 18 of their papers we have counts for
18 papers
Interaction-driven spontaneous broken-symmetry insulator and metals in ABCA tetralayer graphene
Kai Liu, Jian Zheng, Yating Sha +11
Interactions among charge carriers in graphene can lead to the spontaneous breaking of multiple degeneracies. When increasing the number of graphene layers following rhombohedral s…
Magnetic field stabilized Wigner crystal states in a graphene moiré superlattice
Guorui Chen, Ya-Hui Zhang, Aaron Sharpe +11
Wigner crystals are predicted as the crystallization of the dilute electron gas moving in a uniform background when the electron-electron Coulomb energy dominates the kinetic energ…
Electron-infrared phonon coupling in ABC trilayer graphene
Xiaozhou Zan, Xiangdong Guo, Aolin Deng +18
Stacking order plays a crucial role in determining the crystal symmetry and has significant impacts on electronic, optical, magnetic, and topological properties. Electron-phonon co…
Quick Identification of ABC Trilayer Graphene at Nanoscale Resolution via a Near-field Optical Route
Peiyue Shen, Xianliang Zhou, Jiajun Chen +7
ABC-stacked trilayer graphene has exhibited a variety of correlated phenomena owing to its relatively flat bands and gate-tunable bandgap. However, convenient methods are still lac…
Catalytic growth of ultralong graphene nanoribbons on insulating substrates
Bosai Lyu, Jiajun Chen, Shuo Lou +22
Graphene nanoribbons (GNRs) with widths of a few nanometres are promising candidates for future nano-electronic applications due to their structurally tunable bandgaps, ultrahigh c…
Spectroscopy Signatures of Electron Correlations in a Trilayer Graphene/hBN Moiré Superlattice
Jixiang Yang, Guorui Chen, Tianyi Han +12
ABC-stacked trilayer graphene/hBN moiré superlattice (TLG/hBN) has emerged as a playground for correlated electron physics. We report spectroscopy measurements of dual-gated TLG/hB…
Coexistence of Ferroelectric-like Polarization and Dirac-like Surface State in TaNiTe5
Yunlong Li, Zhao Ran, Chaozhi Huang +20
By combining angle-resolved photoemission spectroscopy (ARPES), scanning tunneling microscopy (STM), piezoresponse force microscopy (PFM) and first-principles calculations, we have…
Fano resonance enabled infrared nano-imaging of local strain in bilayer graphene
Jing Du, Bosai Lyu, Wanfei Shan +10
Detection of local strain at the nanometer scale with high sensitivity remains challenging. Here we report near-field infrared nano-imaging of local strains in bilayer graphene thr…
Quantum Capacitance Induced Non-Local Electrostatic Gating Effect in Graphene
Aolin Deng, Cheng Hu, Peiyue Shen +8
Electrostatic gating lies in the heart of modern FET-based integrated circuits. Usually, the gate electrode has to be placed very close to the conduction channel, typically a few n…
Tunable ferromagnetism at non-integer filling of a moiré superlattice
Guorui Chen, Aaron L. Sharpe, Eli J. Fox +12
The flat bands resulting from moiré superlattices in magic-angle twisted bilayer graphene (MATBG) and ABC-trilayer graphene aligned with hexagonal boron nitride (ABC-TLG/hBN) have…
Reflection Phase Shift of One-dimensional Plasmon Polaritons in Carbon Nanotubes
Xingdong Luo, Cheng Hu, Bosai Lyu +5
We investigated, both experimentally and theoretically, the reflection phase shift (RPS) of one-dimensional plasmon polaritons. We launched 1D plasmon polaritons in carbon nanotube…
Tunable Correlated Chern Insulator and Ferromagnetism in Trilayer Graphene/Boron Nitride Moiré Superlattice
Guorui Chen, Aaron L. Sharpe, Eli J. Fox +12
Studies on two-dimensional electron systems in a strong magnetic field first revealed the quantum Hall (QH) effect, a topological state of matter featuring a finite Chern number (C…
Signatures of Gate-Tunable Superconductivity in Trilayer Graphene/Boron Nitride Moiré Superlattice
Guorui Chen, Aaron L. Sharpe, Patrick Gallagher +12
Understanding the mechanism of high temperature (high Tc) superconductivity is a central problem in condensed matter physics. It is often speculated that high Tc superconductivity…
Evidence of Gate-Tunable Mott Insulator in Trilayer Graphene-Boron Nitride Moiré Superlattice
Guorui Chen, Lili Jiang, Shuang Wu +9
Mott insulator plays a central role in strongly correlated physics, where the repulsive Coulomb interaction dominates over the electron kinetic energy and leads to insulating state…
Direct Observation of Layer-Dependent Electronic Structure in Phosphorene
Likai Li, Jonghwan Kim, Chenhao Jin +14
Phosphorene, a single atomic layer of black phosphorus, has recently emerged as a new twodimensional (2D) material that holds promise for electronic and photonic technology. Here w…
Amplitude- and phase-resolved nano-spectral imaging of phonon polaritons in hexagonal boron nitride
Zhiwen Shi, Hans A. Bechte, Samuel Berweger +7
Phonon polaritons are quasiparticles resulting from strong coupling of photons with optical phonons. Excitation and control of these quasiparticles in 2D materials offer the opport…
Observation of an intrinsic bandgap and Landau level renormalization in graphene/boron-nitride heterostructures
Zhi-Guo Chen, Zhiwen Shi, Wei Yang +6
Van der Waals heterostructures formed by assembling different two-dimensional atomic crystals into stacks can lead to many new phenomena and device functionalities. In particular,…
Gate-dependent Pseudospin Mixing in Graphene/Boron Nitride Moire Superlattices
Zhiwen Shi, Chenhao Jin, Wei Yang +13
Electrons in graphene are described by relativistic Dirac-Weyl spinors with a two-component pseudospin1-12. The unique pseudospin structure of Dirac electrons leads to emerging phe…