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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…
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-…
Spin polarization and texture of the Fermi arcs in the Weyl Fermion semimetal TaAs
Su-Yang Xu, Ilya Belopolski, Daniel S. Sanchez +25
A Weyl semimetal is a new state of matter that host Weyl fermions as quasiparticle excitations. The Weyl fermions at zero energy correspond to points of bulk band degeneracy, Weyl…
Electrical transport in nano-thick ZrTe sheets: from three to two dimensions
Jingjing Niu, Jingyue Wang, Zhijie He +7
ZrTe is a newly discovered topological material. Shortly after a single layer ZrTe had been predicted to be a two-dimensional topological insulator, a handful of experiment…
Large Magnetoresistance over an Extended Temperature Regime in Monophosphides of Tantalum and Niobium
Chenglong Zhang, Cheng Guo, Hong Lu +5
We report extremely large magnetoresistance (MR) in an extended temperature regime from 1.5 K to 300 K in non-magnetic binary compounds TaP and NbP. TaP exhibits linear MR around $…
Tantalum Monoarsenide: an Exotic Compensated Semimetal
Chenglong Zhang, Zhujun Yuan, Suyang Xu +6
Compared with the semiconductors such as silicon and gallium arsenide which have been used widely for decades, semimetals have not received much attention in the field of condensed…
Anisotropic Fermi Surface and Quantum Limit Transport in High Mobility 3D Dirac Semimetal Cd3As2
Yanfei Zhao, Haiwen Liu, Chenglong Zhang +10
The three-dimensional (3D) topological Dirac semimetal is a new topological phase of matter, viewed as the 3D analogy of graphene with a linear dispersion in the 3D momentum space.…