Dirac semimetal and topological phase transitions in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>A</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>Bi (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>A</mml:mi><mml:mo>=</mml:mo><mml:mtext>Na</mml:mtext></mml:mrow></mml:math>, K, Rb)

Wang, Zhijun; Sun, Yan; Chen, Xing‐Qiu; Franchini, Cesare; Xu, Gang; Weng, Hongming; Dai, Xi; Fang, Zhong

doi:10.1103/physrevb.85.195320

Public

Dirac semimetal and topological phase transitions inA3Bi (A=Na, K, Rb)

Published in Physical Review B • May 22, 2012

Authors:

Zhijun Wang

Yan Sun

Xing‐Qiu Chen

Abstract

Three-dimensional (3D) Dirac point, where two Weyl points overlap in momentum space, is usually unstable and hard to realize. Here we show, based on the first-principles calculations and effective model analysis, that crystalline ${A}_{3}$Bi ($A=\text{Na}$, K, Rb) are Dirac semimetals with bulk 3D D...

Subject

Dirac (video compression format)

Homogeneous space

Semimetal

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