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The Role of Oxygen in Ionic Liquid Gating on 2D Cr2Ge2Te6: a Non-Oxide Material
Yangyang Chen, Wenyu Xing, Xirui Wang +10
Ionic liquid gating can markedly modulate the materials' carrier density so as to induce metallization, superconductivity, and quantum phase transitions. One of the main issues is…
Ultraquantum magnetoresistance in Kramers Weyl semimetal candidate -Ag2Se
Cheng-Long Zhang, Frank Schindler, Haiwen Liu +14
The topological semimetal -Ag2Se features a Kramers Weyl node at the origin in momentum space and a quadruplet of spinless Weyl nodes, which are annihilated by spin-orbit coupli…
Dynamical Anisotropic Response of Black Phosphorus under Magnetic Field
Xuefeng Liu, Wei Lu, Xiaoying Zhou +8
Black phosphorus (BP) has emerged as a promising material candidate for next generation electronic and optoelectronic devices due to its high mobility, tunable band gap and highly…
Direct optical detection of Weyl fermion chirality in a topological semimetal
Qiong Ma, Su-Yang Xu, Ching-Kit Chan +10
A Weyl semimetal (WSM) is a novel topological phase of matter, in which Weyl fermions (WFs) arise as pseudo-magnetic monopoles in its momentum space. The chirality of the WFs, give…
Electric Field Effect in Multilayer Cr2Ge2Te6: a Ferromagnetic Two-Dimensional Material
Wenyu Xing, Yangyang Chen, Patrick M. Odenthal +10
The emergence of two-dimensional (2D) materials has attracted a great deal of attention due to their fascinating physical properties and potential applications for future nanoelect…
Gate Tunable Magneto-resistance of Ultra-Thin WTe2 Devices
Xin Liu, Zhiran Zhang, Chaoyi Cai +8
In this work, the magneto-resistance (MR) of ultra-thin WTe2/BN heterostructures far away from electron-hole equilibrium is measured. The change of MR of such devices is found to b…
Electron scattering in tantalum monoarsenide
Cheng-Long Zhang, Zhujun Yuan, Qing-Dong Jiang +4
We report comprehensive studies of the single crystal growth and electrical transport properties for various samples of TaAs, the first experimentally confirmed inversion symmetry-…