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The Chiral Anomaly and Ultrahigh Mobility in Crystalline HfTe5
Huichao Wang, Chao-Kai Li, Haiwen Liu +11
HfTe5 is predicted to be a promising platform for studying topological phases. Here through an electrical transport study, we present the first observation of chiral anomaly and ul…
Observation of Unusual Magnetoelastic Effects in a Quasi-1D Spiral Magnet
Chong Wang, Daiwei Yu, Xiaoqiang Liu +10
We present a systematic study of spin and lattice dynamics in the quasi-one-dimensional spiral magnet CuBr2, using Raman scattering in conjunction with infrared and neutron spectro…
Competing Magnetic Orderings and Tunable Topological States in Two-Dimensional Hexagonal Organometallic Lattices
Hyun-Jung Kim, Chaokai Li, Ji Feng +2
The exploration of topological states is of significant fundamental and practical importance in contemporary condensed matter physics, for which the extension to two-dimensional (2…
Giant and tunable valley degeneracy splitting in MoTe2
Jingshan Qi, Xiao Li, Qian Niu +1
Monolayer transition-metal dichalcogenides possess a pair of degenerate helical valleys in the band structure that exhibit fascinating optical valley polarization. Optical valley p…
Computational Study of the Magnetic Structure of NaIrO
Kaige Hu, Fa Wang, Ji Feng
The magnetic structure of honeycomb iridate NaIrO is of paramount importance to its exotic properties. The magnetic order is established experimentally to be zigzag antifer…
Dynamical Evolution of Anisotropic Response in Black Phosphorus under Ultrafast Photoexcitation
Shaofeng Ge, Chaokai Li, Zhimin Zhang +8
Black phosphorus has recently emerged as a promising material for high performance electronic and optoelectronic device for its high mobility, tunable mid-infrared bandgap and anis…
Charge density waves and phonon-electron coupling in ZrTe investigated by Raman spectroscopy and first-principles calculations
Yuwen Hu, Feipeng Zheng, Xiao Ren +2
Charge-density-wave (CDW) order has long been interpreted as arising from a Fermi-surface instability in the parent metallic phase. While phonon-electron coupling has been suggeste…