1.6k citations · 4.6k across the 21 of their papers we have counts for
14 papers · 1 filter
Experimental evidence of plasmarons and effective fine structure constant in electron-doped graphene/h-BN heterostructure
Hongyun Zhang, Shuopei Wang, Eryin Wang +13
Electron-electron interaction is fundamental in condensed matter physics and can lead to composite quasiparticles called plasmarons, which strongly renormalize the dispersion and c…
Observation of Wigner crystal of electrons in a monolayer semiconductor
T. Smoleński, P. E. Dolgirev, C. Kuhlenkamp +9
When the Coulomb repulsion between electrons dominates over their kinetic energy, electrons in two dimensional systems were predicted to spontaneously break continuous translation…
Measuring local moiré lattice heterogeneity of twisted bilayer graphene
Tjerk Benschop, Tobias A. de Jong, Petr Stepanov +5
We introduce a new method to continuously map inhomogeneities of a moiré lattice and apply it to large-area topographic images we measure on open-device twisted bilayer graphene (T…
High-order minibands and interband Landau level reconstruction in graphene moire superlattice
Xiaobo Lu, Jian Tang, John R. Wallbank +13
The propagation of Dirac fermions in graphene through a long-period periodic potential would result in a band folding together with the emergence of a series of cloned Dirac points…
Terahertz photogalvanics in twisted bilayer graphene close to the second magic angle
M. Otteneder, S. Hubmann, X. Lu +6
We report on the observation of photogalvanic effects in twisted bilayer graphene (tBLG) with a twist angle of 0.6°. We show that excitation of tBLG bulk causes a photocurrent, who…
Artificial Multiferroics and Enhanced Magnetoelectric Effect in van der Waals Heterostructures
Yan Lu, Ruixiang Fei, Xiaobo Lu +3
Multiferroic materials with coupled ferroelectric and ferromagnetic properties are important for multifunctional devices due to their potential ability of controlling magnetism via…
Exciton Transport under Periodic Potential in MoSe2/WSe2 Heterostructures
Zidong Li, Xiaobo Lu, Darwin F. Cordovilla Leon +9
The predicted formation of moire superlattices leading to confined excitonic states in heterostructures formed by stacking two lattice mismatched transition metal dichalcogenide (T…
Meron-Like Topological Spin Defects in Monolayer CrCl3
Xiaobo Lu, Ruixiang Fei, Linghan Zhu +1
Noncollinear spin textures in low-dimensional magnetic systems have been studied for decades because of their extraordinary properties and promising applications derived from the c…
Modulated Interlayer Exciton Properties in a Two-Dimensional Moire Crystal
Xiaobo Lu, Xiaoqin Li, Li Yang
Twisted van der Waals heterostructures and the corresponding superlattices, moire superlattices, are remarkable new material platforms, in which electron interactions and excited-s…
Curie Temperature of Emerging Two-Dimensional Magnetic Structures
Xiaobo Lu, Ruixiang Fei, Li Yang
Recent realizations of intrinsic, long-range magnetic orders in two-dimensional (2D) van der Waals materials have ignited tremendous research interests. In this work, we employ the…
Current-driven magnetization switching in a van der Waals ferromagnet Fe3GeTe2
Xiao Wang, Jian Tang, Xiuxin Xia +25
The recent discovery of ferromagnetism in two-dimensional (2D) van der Waals (vdW) materials holds promises for novel spintronic devices with exceptional performances. However, in…
Microsecond Valley Lifetime of Defect-Bound Excitons in Monolayer WSe
Galan Moody, Kha Tran, Xiaobo Lu +6
In atomically thin two-dimensional semiconductors such as transition metal dichalcogenides (TMDs), controlling the density and type of defects promises to be an effective approach…
Moiré Excitons in Van der Waals Heterostructures
Kha Tran, Galan Moody, Fengcheng Wu +19
In van der Waals (vdW) heterostructures formed by stacking two monolayer semiconductors, lattice mismatch or rotational misalignment introduces an in-plane moiré superlattice. Whil…
Landau velocity for collective quantum Hall breakdown in bilayer graphene
W. Yang, H. Graef, X. Lu +12
Breakdown of the quantum Hall effect (QHE) is commonly associated with an electric field approaching the inter Landau-level (LL) Zener field, ratio of the Landau gap and cyclotron…