activity
20222026
most citedObservation of stacking engineered magnetic phase transitions within moiré supercells of twisted van der Waals magnets

36 citations · 92 across the 16 of their papers we have counts for

collaborators

17 papers

cond-mat.mtrl-sci2026

Origin of the reaction temperature in solid-state materials synthesis

Shibo Tan, Gabrielle E. Kamm, Alex Stangel +12

Temperature plays a crucial role in solid-state materials synthesis, but there is currently no mechanistic theory to explain or predict which temperature is best to conduct a solid…

cond-mat.mtrl-sci2026

Helium-Cooled Cryogenic STEM Imaging and Ptychography for Atomic-Scale Study of Low-Temperature Phases

Noah Schnitzer, Mariana Palos, Geri Topore +7

Much of the exotic functionality of prime interest in quantum materials emerges from structural and electronic ground states that can only be accessed at cryogenic temperatures. Un…

cond-mat.mes-hall2025

Magneto-Moiré Excitons in Twisted Bilayer CrSBr

Qiuyang Li, Anton Shubnic, Nishkarsh Agarwal +15

Moiré superlattices in van der Waals materials have revolutionized the study of electronic and excitonic systems by creating periodic electrostatic potentials. Extending this conce…

cond-mat.mtrl-sci2025★ 2 cited

Delayed 1T to 2H Phase Transition Upon Electrochemical Delithiation of LiMoS2

Yerin Hong, Juhwan Lim, Jinhong Min +4

Molybdenum disulfide (MoS2) is a widely studied layered material for electronic, optical, and catalytic applications. It can host lithium ions between the van der Waals layers, whi…

cond-mat.mtrl-sci2025

Melting point depression of charge density wave in 1T-TiSe due to size effects

Saif Siddique, Mehrdad T. Kiani, Omri Lesser +13

Classical nucleation theory predicts size-dependent nucleation and melting due to surface and confinement effects at the nanoscale. In correlated electronic states, observation of…

physics.ins-det2025★ 3 cited

Liquid Helium Cryogenic TEM below 1 Å

Suk Hyun Sung, Maya Gates, Nishkarsh Agarwal +10

Next-generation cryogenic transmission electron microscopes (TEM) aim to achieve high-resolution imaging at ultracold sample temperatures (< 90 K) and over extended hold times. Low…

cond-mat.mtrl-sci2025

Intertwined polar, chiral, and ferro-rotational orders in a rotation-only insulator

Weizhe Zhang, June Ho Yeo, Xiaoyu Guo +8

Intertwined orders refer to strongly coupled and mutually dependent orders that coexist in correlated electron systems, often underpinning key physical properties of the host mater…

cond-mat.mtrl-sci2025

Nanoscale Polar Landscapes in Quantum Paraelectric SrTiO3

Yang Zhang, Suk Hyun Sung, Nishkarsh Agarwal +5

SrTiO3 is a textbook quantum paraelectric, with ferroelectricity purportedly suppressed by quantum fluctuations of ionic positions down to the lowest temperatures. The precise real…

cond-mat.mtrl-sci2025

Chiral quantum magnets with optically and catalytically active spin ladders

Bum Chul Park, Sung-Chul Kim, Dae Beom Lee +21

Chiral quantum magnets with spin-states separated by a large energy gap are technologically attractive but difficult to realize. Geometrically frustrated topological states with na…

cond-mat.mtrl-sci2025

Tunable symmetry breaking in a hexagonal-stacked moiré magnet

Zeliang Sun, Gaihua Ye, Xiaohan Wan +13

Symmetry plays a central role in defining magnetic phases, making tunable symmetry breaking across magnetic transitions highly desirable for discovering non-trivial magnetism. Magn…

cond-mat.mtrl-sci2025

Melting of Charge Density Waves in Low Dimensions

Jeremy M. Shen, Alex Stangel, Suk Hyun Sung +9

Charge density waves (CDWs) are collective electronic states that can reshape and melt, even while confined within a rigid atomic crystal. In two dimensions, melting is predicted t…

cond-mat.mes-hall2025

Visualizing Field-free Deterministic Magnetic Switching of all-van der Waals Spin-Orbit Torque System Using Spin Ensembles in Hexagonal Boron Nitride

Xi Zhang, Jingcheng Zhou, Chaowei Hu +19

Recently, optically active spin defects embedded in van der Waals (vdW) crystals have emerged as a transformative quantum sensing platform to explore cutting-edge materials science…

cond-mat.mes-hall2024★ 36 cited

Observation of stacking engineered magnetic phase transitions within moiré supercells of twisted van der Waals magnets

Senlei Li, Zeliang Sun, Nathan J. McLaughlin +12

Twist engineering of magnetic van der Waals (vdW) moiré superlattices provides an attractive way to achieve precise nanoscale control over the spin degree of freedom on two-dimensi…

physics.app-ph2024★ 18 cited

Ultra-Cold Cryogenic TEM with Liquid Helium and High Stability

Emily Rennich, Suk Hyun Sung, Nishkarsh Agarwal +4

Cryogenic transmission electron microscopy has revolutionized structural biology and materials science, but achieving temperatures below the boiling point of liquid nitrogen remain…

cond-mat.mtrl-sci2023★ 17 cited

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…

cond-mat.mes-hall2023★ 1 cited

Revealing intrinsic domains and fluctuations of moiré magnetism by a wide-field quantum microscope

Mengqi Huang, Zeliang Sun, Gerald Yan +14

Moiré magnetism featured by stacking engineered atomic registry and lattice interactions has recently emerged as an appealing quantum state of matter at the forefront condensed mat…

cond-mat.mtrl-sci2022★ 15 cited

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…