170 citations · 885 across the 21 of their papers we have counts for
22 papers
Ultrafast Magnetization Induced from Raman-Active Axial Chiral Phonons
Chuankun Huang, Alexander Milner, Jiaming Luo +8
Axial chiral phonons, which carry angular momentum and exhibit unusually large magnetic moments, provide a new degree of freedom for controlling the time-reversal symmetry and magn…
Exceptional Optical Phonon Coherence in Enriched Cubic Boron Arsenide via Suppression of Three-Phonon Scattering
Tong Lin, Fengjiao Pan, Gaihua Ye +8
Cubic boron arsenide (BAs) is a promising semiconductor for next-generation electronics due to its outstanding ambipolar mobility and thermal conductivity, the latter of which is a…
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…
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…
Long-lived Zone-boundary Magnons in an Antiferromagnet
Jeongheon Choe, David Lujan, Gaihua Ye +13
Antiferromagnetic (AFM) insulators exhibit many desirable features for spintronic applications such as fast dynamics in the THz range and robustness to fluctuating external fields.…
Growth of hexagonal BN crystals by traveling-solvent floating zone
Eli Zoghlin, Juliette Plo, Gaihua Ye +11
Large, high-purity single-crystals of hexagonal BN (h-BN) are essential for exploiting its many desirable and interesting properties. Here, we demonstrate via X-ray tomography, X-r…
Spontaneously formed phonon frequency combs in van der Waals solid CrXTe (X=Ge,Si)
Lebing Chen, Gaihua Ye, Cynthia Nnokwe +10
Optical phonon engineering through nonlinear effects has been utilized in ultrafast control of material properties. However, nonlinear optical phonons typically exhibit rapid decay…
Exciton-activated effective phonon magnetic moment in monolayer MoS2
Chunli Tang, Gaihua Ye, Cynthia Nnokwe +9
Optical excitation of chiral phonons plays a vital role in studying the phonon-driven magnetic phenomena in solids. Transition metal dichalcogenides host chiral phonons at high sym…
Dimensionality crossover to 2D vestigial nematicity from 3D zigzag antiferromagnetism in an XY-type honeycomb van der Waals magnet
Zeliang Sun, Gaihua Ye, Mengqi Huang +12
Fluctuations and disorder effects are substantially enhanced in reduced dimensionalities. While they are mostly considered as the foe for long-range orders, fluctuations and disord…
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…
Magnetic anisotropy reversal driven by structural symmetry-breaking in monolayer α-RuCl3
Bowen Yang, Yin Min Goh, Suk Hyun Sung +14
Layered α-RuCl3 is a promising material to potentially realize the long-sought Kitaev quantum spin liquid with fractionalized excitations. While evidence of this exotic state has b…
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…
Structural Monoclinicity and Its Coupling to Layered Magnetism in Few-Layer
Xiaoyu Guo, Wencan Jin, Zhipeng Ye +13
Using polarization-resolved Raman spectroscopy, we investigate layer number, temperature, and magnetic field dependence of Raman spectra in one- to four-layer . L…
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…
Tunable layered-magnetism-assisted magneto-Raman effect in a two-dimensional magnet
Wencan Jin, Zhipeng Ye, Xiangpeng Luo +13
We use a combination of polarized Raman spectroscopy experiment and model magnetism-phonon coupling calculations to study the rich magneto-Raman effect in the two-dimensional (2D)…
Observation of the polaronic character of excitons in a two-dimensional semiconducting magnet
Wencan Jin, Hyun Ho Kim, Zhipeng Ye +15
Exciton dynamics can be strongly affected by lattice vibrations through electron-phonon coupling. This is rarely explored in two-dimensional magnetic semiconductors. Focusing on bi…
Magnetic field-induced quantum phase transitions in a van der Waals magnet
Siwen Li, Zhipeng Ye, Xiangpeng Luo +10
Exploring new parameter regimes to realize and control novel phases of matter has been a main theme in modern condensed matter physics research. The recent discovery of 2D magnetis…
Stacking-Dependent Interlayer Phonons in 3R and 2H MoS
Jeremiah van Baren, Gaihua Ye, Jia-An Yan +6
We have investigated the interlayer shear and breathing phonon modes in MoS with pure 3R and 2H stacking order by using polarization-dependent ultralow-frequency Raman spectr…
Dimensionality-driven orthorhombic MoTe2 at room temperature
Rui He, Shazhou Zhong, Hyun Ho Kim +9
We use a combination of Raman spectroscopy and transport measurements to study thin flakes of the type-II Weyl semimetal candidate MoTe2 protected from oxidation. In contrast to bu…
Interlayer breathing and shear modes in NbSe2 atomic layers
Rui He, Jeremiah van Baren, Jia-An Yan +6
Atomically thin NbSe2 is a metallic layered transition metal dichalcogenide (TMD) with considerably different crystallographic structure and electronic properties from other TMDs,…
Distinct surface and bulk charge density waves in ultrathin 1T-TaS2
Rui He, Junichi Okamoto, Zhipeng Ye +10
We employ low-frequency Raman spectroscopy to study the nearly commensurate (NC) to commensurate (C) charge density wave (CDW) transition in 1T-TaS2 ultrathin flakes protected from…
Coupling and stacking order of ReS2 atomic layers revealed by ultralow-frequency Raman spectroscopy
Rui He, Jia-An Yan, Zongyon Yin +5
We investigate the ultralow-frequency Raman response of atomically thin ReS2, a special type of two-dimensional (2D) semiconductors with unique distorted 1T structure. Bilayer and…