Two-Dimensional Honeycomb B2Se with Orthogonal Lattice: High Stability and Strong Anisotropic Dirac Cone

2020 ◽  
Vol 124 (13) ◽  
pp. 7558-7565 ◽  
Author(s):  
Ji-kai Lyu ◽  
Wei-xiao Ji ◽  
Shu-feng Zhang ◽  
Chang-wen Zhang ◽  
Pei-ji Wang
Keyword(s):  
High Stability ◽  
Two Dimensional ◽  
Dirac Cone

scholarly journals A first principles investigation on the structural, mechanical, electronic, and catalytic properties of biphenylene

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yi Luo ◽  
Chongdan Ren ◽  
Yujing Xu ◽  
Jin Yu ◽  
Sake Wang ◽  
...  
Keyword(s):  
Melting Point ◽  
First Principles ◽  
High Stability ◽  
Mechanical Performance ◽  
Catalytic Properties ◽  
Two Dimensional ◽  
First Principles Calculations ◽  
Dirac Cone ◽  
Chemical Catalysis ◽  
Potential Applications

AbstractRecently, a new two-dimensional allotrope of carbon (biphenylene) was experimentally synthesized. Using first-principles calculations, we systematically investigated the structural, mechanical, electronic, and HER properties of biphenylene. A large cohesive energy, absence of imaginary phonon frequencies, and an ultrahigh melting point up to 4500 K demonstrate its high stability. Biphenylene exhibits a maximum Young’s modulus of 259.7 N/m, manifesting its robust mechanical performance. Furthermore, biphenylene was found to be metallic with a n-type Dirac cone, and it exhibited improved HER performance over that of graphene. Our findings suggest that biphenylene is a promising material with potential applications in many important fields, such as chemical catalysis.

scholarly journals Two-Dimensional Boron Hydride Sheets: High Stability, Massless Dirac Fermions, and Excellent Mechanical Properties

2016 ◽  
Vol 128 (35) ◽  
pp. 10448-10451 ◽  
Author(s):  
Yalong Jiao ◽  
Fengxian Ma ◽  
John Bell ◽  
Ante Bilic ◽  
Aijun Du
Keyword(s):  
Mechanical Properties ◽  
High Stability ◽  
Dirac Fermions ◽  
Two Dimensional ◽  
Boron Hydride

Effect of the Dirac-cone tilt on the disorder-broadened Landau levels in a two-dimensional Dirac nodal system

2021 ◽  
Vol 104 (23) ◽  
Author(s):  
Haibo Yao ◽  
Mingfeng Zhu ◽  
Liwei Jiang ◽  
Yisong Zheng
Keyword(s):  
Landau Levels ◽  
Two Dimensional ◽  
Dirac Cone ◽  
Nodal System

scholarly journals Effects of Dirac cone tilt in a two-dimensional Dirac semimetal

2018 ◽  
Vol 98 (19) ◽  
Author(s):  
Zhao-Kun Yang ◽  
Jing-Rong Wang ◽  
Guo-Zhu Liu
Keyword(s):  
Two Dimensional ◽  
Dirac Cone ◽  
Dirac Semimetal

Two-dimensional transition-metal halide CoBr3 with spin-polarized Dirac cone

2019 ◽  
Vol 21 (32) ◽  
pp. 17740-17745 ◽  
Author(s):  
Wei-xi Zhang ◽  
Yong Li ◽  
Hui Jin ◽  
Yan-chao She
Keyword(s):  
Transition Metal ◽  
Electronic Properties ◽  
Metal Halide ◽  
Two Dimensional ◽  
Dirac Cone ◽  
Spin Polarized ◽  
Metal Materials

Recently, the discovery of two-dimensional transition-metal materials with non-trivial magnetic and electronic properties has spurred huge interest in investigating their applications in nanotechnology.

Achieving high hydrogen evolution reaction activity of a Mo2C monolayer

2020 ◽  
Vol 22 (45) ◽  
pp. 26189-26199
Author(s):  
Huan Lou ◽  
Tong Yu ◽  
Jiani Ma ◽  
Shoutao Zhang ◽  
Aitor Bergara ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Stability ◽  
Low Cost ◽  
Two Dimensional ◽  
High Hydrogen

Two-dimensional Mo2C materials (1T and 2H phases) have emerged as promising electrocatalysts for the hydrogen evolution reaction (HER) due to their low cost, inherent metallicity, and high stability.

Mirror symmetry origin of Dirac cone formation in rectangular two-dimensional materials

2020 ◽  
Vol 22 (12) ◽  
pp. 6619-6625 ◽  
Author(s):  
Xuming Qin ◽  
Yi Liu ◽  
Gui Yang ◽  
Dongqiu Zhao
Keyword(s):  
Band Structure ◽  
Mirror Symmetry ◽  
Density Functional ◽  
Tight Binding ◽  
Coupling Mechanism ◽  
Two Dimensional ◽  
Dirac Cone ◽  
Two Dimensional Materials ◽  
Tight Binding Method ◽  
Cone Formation

The origin of Dirac cone band structure of 6,6,12-graphyne is revealed by a “mirror symmetry parity coupling” mechanism proposed with tight-binding method combined with density functional calculations.

Novel two-dimensional semiconductor SnP3: high stability, tunable bandgaps and high carrier mobility explored using first-principles calculations

2018 ◽  
Vol 6 (25) ◽  
pp. 11890-11897 ◽  
Author(s):  
Songsong Sun ◽  
Fanchen Meng ◽  
Hongyan Wang ◽  
Hui Wang ◽  
Yuxiang Ni
Keyword(s):  
First Principles ◽  
Carrier Mobility ◽  
High Stability ◽  
Two Dimensional ◽  
First Principles Calculations ◽  
2D Material ◽  
High Carrier Mobility ◽  
High Carrier

A novel semiconducting 2D material based on monolayer and bilayer SnP3 is proposed using first-principles calculations.

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