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3D Dirac semimetal Cd3As2: A review of material properties
I. Crassee, R. Sankar, W. -L. Lee +2
Cadmium arsenide (Cd3As2) - a time-honored and widely explored material in solid-state physics - has recently attracted considerable attention. This was triggered by a theoretical…
High-performance InSe Transistors with Ohmic Contact Enabled by Nonrectifying-barrier-type Indium Electrodes
Yu-Ting Huang, Yi-Hsun Chen, Yi-Ju Ho +10
The electrical contact to two-dimensional (2D)-semiconductor materials are decisive to the electronic performance of 2D-semiconductor field-effect devices (FEDs). The presence of a…
Topological nature of step edge states on the surface of topological crystalline insulator PbSnSe
Davide Iaia, Chang-Yan Wang, Yulia Maximenko +5
In addition to novel surface states, topological insulators can also exhibit robust gapless states at crystalline defects. Step edges constitute a class of common defects on the su…
Topological Type-II Dirac Fermions Approaching the Fermi Level in a Transition Metal Dichalcogenide NiTe2
Chunqiang Xu, Bin Li, Wenhe Jiao +8
Type-II Dirac/Weyl semimetals are characterized by strongly tilted Dirac cones such that the Dirac/Weyl node emerges at the boundary of electron and hole pockets as a new state of…
Correlation between non-Fermi-liquid behavior and superconductivity in (Ca, La)(Fe,Co)As2 iron arsenides: A high-pressure study
W. Zhou, F. Ke, Xiaofeng Xu +11
Non-Fermi-liquid (NFL) phenomena associated with correlation effects have been widely observed in the phase diagrams of unconventional superconducting families. Exploration of the…
Emergence of a Metal-Insulator Transition and High Temperature Charge Density Waves in VSe2 at the Monolayer Limit
Ganbat Duvjir, Byoung Ki Choi, Iksu Jang +13
Emergent phenomena driven by electronic reconstructions in oxide heterostructures have been intensively discussed. However, the role of these phenomena in shaping the electronic pr…
Surface Termination Dependent Quasiparticle Scattering Interference and Magneto-transport Study on ZrSiS
Chih-Chuan Su, Chi-Sheng Li, Tzu-Cheng Wang +7
Dirac nodal line semimetals represent a new state of quantum matters in which the electronic bands touch to form a closed loop with linear dispersion. Here, we report a combined st…
Enhanced Light Emission from the Ridge of Two-dimensional InSe Flakes
Yang Li§, Tianmeng Wang§, Han Wang§ +10
InSe, a newly rediscovered two-dimensional (2D) semiconductor, possesses superior electrical and optical properties as a direct bandgap semiconductor with high mobility from bulk t…
Atomic-Scale Strain Manipulation of a Charge Density Wave
Shang Gao, Felix Flicker, Raman Sankar +9
A charge density wave (CDW) is one of the fundamental instabilities of the Fermi surface occurring in a wide range of quantum materials. In dimensions higher than one, where Fermi…
Optical Signatures of Dirac Nodal-lines in NbAs
Yinming Shao, Zhiyuan Sun, Ying Wang +10
Using polarized optical and magneto-optical spectroscopy, we have demonstrated universal aspects of electrodynamics associated with Dirac nodal-lines. We investigated anisotropic e…
Dynamic surface electronic reconstruction as symmetry-protected topological orders in topological insulator Bi2Se3
G. J. Shu, S. C. Liou, S. K. Karna +3
Layered narrow band gap semiconductor Bi2Se3 is composed of heavy elements with strong spin-orbital coupling (SOC), which has been identified both as a good candidate of thermoelec…
Tuning Rashba Spin-Orbit Coupling in Gated Multilayer InSe
Kasun Premasiri, Santosh Kumar Radha, Sukrit Sucharitakul +5
Manipulating the electron spin with the aid of spin-orbit coupling (SOC) is an indispensable element of spintronics. Electrostatically gating a material with strong SOC results in…
The energy scale of Dirac electrons in Cd3As2
M. Hakl, S. Tchoumakov, I. Crassee +15
Cadmium arsenide (Cd3As2) has recently became conspicuous in solid-state physics due to several reports proposing that it hosts a pair of symmetry-protected 3D Dirac cones. Despite…
Kondo behavior and metamagnetic phase transition in a heavy fermion compound CeBi2
W. Zhou, C. Q. Xu, B. Li +7
Heavy fermions represent an archetypal example of strongly correlated electron systems which, due to entanglement among different interactions, often exhibit exotic and fascinating…
Ultrasensitive Tunability of the Direct Bandgap of Two-dimensional InSe Flakes via Strain Engineering
Yang Li§, Tianmeng Wang§, Meng Wu§ +9
InSe, a member of the layered materials family, is a superior electronic and optical material which retains a direct bandgap feature from the bulk to atomically thin few-layers and…
Resistivity Anomaly in Weyl Semimetal candidate Molybdenum Telluride
Dhavala Suri, Christopher Linderalv, Bogdan Karpiak +8
The Weyl semi-metal candidate MoTe is expected to exhibit a range of exotic electronic transport properties. It exhibits a structural phase transition near room temperature t…
Analysis of June 2, 2016 bolide event
Csaba Palotai, Ramanakumar Sankar, Dwayne L. Free +3
On June 2, 2016 at 10h56m UTC, a magnitude superbolide was observed over Arizona. Fragments were located a few days later and the meteorites were given the name Dis…