711 citations · 1.2k across the 21 of their papers we have counts for
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Elastic plate basis for the deformation and electron diffraction of twisted bilayer graphene on a substrate
Moon-ki Choi, Suk Hyun Sung, Robert Hovden +1
A basis is derived from elastic plate theory that quantifies equilibrium and dynamic deformation and electron diffraction patterns of twisted bilayer graphene (TBG). The basis is d…
"Extraordinary" Phase Transition Revealed in a van der Waals Antiferromagnet
Xiaoyu Guo, Wenhao Liu, Jonathan Schwartz +12
While the surface-bulk correspondence has been ubiquitously shown in topological phases, the relationship between surface and bulk in Landau-like phases is much less explored. Theo…
Endotaxial Stabilization of 2D Charge Density Waves with Long-range Order
Suk Hyun Sung, Nishkarsh Agarwal, Ismail El Baggari +10
Charge density waves are emergent quantum states that spontaneously reduce crystal symmetry, drive metal-insulator transitions, and precede superconductivity. In low-dimensions, di…
Ferro-rotational domain walls revealed by electric quadrupole second harmonic generation microscopy
Xiaoyu Guo, Rachel Owen, Austin Kaczmarek +9
Domain walls are ubiquitous in materials that undergo phase transitions driven by spontaneous symmetry breaking. Domain walls in ferroics and multiferroics have received tremendous…
Evidence of Noncollinear Spin Texture in Magnetic Moiré Superlattices
Hongchao Xie, Xiangpeng Luo, Zhipeng Ye +9
Moiré magnetism, parallel with moiré electronics that has led to novel correlated and topological electronic states, emerges as a new venue to design and control exotic magnetic ph…
A three-stage magnetic phase transition revealed in ultrahigh-quality van der Waals magnet CrSBr
Wenhao Liu, Xiaoyu Guo, Jonathan Schwartz +10
van der Waals (vdW) magnets are receiving ever-growing attention nowadays due to their significance in both fundamental research on low-dimensional magnetism and potential applicat…
Torsional Periodic Lattice Distortions and Diffraction of Twisted 2D Materials
Suk Hyun Sung, Yin Min Goh, Hyobin Yoo +12
Twisted 2D materials form complex moiré structures that spontaneously reduce symmetry through picoscale deformation within a mesoscale lattice. We show twisted 2D materials contain…
Twist engineering of the two-dimensional magnetism in double bilayer chromium triiodide homostructures
Hongchao Xie, Xiangpeng Luo, Gaihua Ye +12
Twist engineering, or the alignment of two-dimensional (2D) crystalline layers with desired orientations, has led to tremendous success in modulating the charge degree of freedom i…
Ultrafast Modulations And Detection of a Ferro-rotational Charge Density Wave Using Time-resolved Electric Quadrupole Second Harmonic Generation
Xiangpeng Luo, Dimuthu Obeysekera, Choongjae Won +7
We show the ferro-rotational nature of the commensurate charge density wave (CCDW) in - and track its dynamic modulations by temperature-dependent and time-reso…
Two-dimensional charge order stabilized in clean polytype heterostructures
Suk Hyun Sung, Noah Schnitzer, Steve Novakov +15
Compelling evidence suggests distinct correlated electron behavior may exist only in clean 2D materials such as 1T-TaS2. Unfortunately, experiment and theory suggest that extrinsic…
The Limits of Resolution and Dose for Aberration-Corrected Electron Tomography
Reed Yalisove, Suk Hyun Sung, Peter Ercius +1
Aberration-corrected electron microscopy can resolve the smallest atomic bond-lengths in nature. However, the high-convergence angles that enable spectacular resolution in 2D have…
Stacking, Strain, & Twist in 2D Materials Quantified by 3D Electron Diffraction
Suk Hyun Sung, Noah Schnitzer, Lola Brown +2
The field of two-dimensional (2D) materials has expanded to multilayered systems where electronic, optical, and mechanical properties change-often dramatically-with stacking order,…
Atomic and electronic reconstruction at van der Waals interface in twisted bilayer graphene
Hyobin Yoo, Rebecca Engelke, Stephen Carr +14
Control of the interlayer twist angle in two-dimensional (2D) van der Waals (vdW) heterostructures enables one to engineer a quasiperiodic moiré superlattice of tunable length scal…
Epitaxial growth and electronic properties of mixed valence YbAl3 thin films
Shouvik Chatterjee, Suk Hyun Sung, David J. Baek +3
We report the growth of thin films of the mixed valence compound YbAl on MgO using molecular-beam epitaxy. Employing an aluminum buffer layer, epitaxial (001) films can be gr…