Dirac and Weyl Semimetal in XYBi (X = Ba, Eu; Y = Cu, Ag and Au).
Dirac and Weyl Semimetal in XYBi (X = Ba, Eu; Y = Cu, Ag and Au).
复制标题
DOI：
10.1038/srep14423
复制
发表时间：
2015-09-24
影响因子：
4.6
通讯作者：
Wan X
中科院分区：
文献类型：
--
作者：
Du Y;Wan B;Wang D;Sheng L;Duan CG;Wan X
Weyl and Dirac semimetals recently stimulate intense research activities due to their novel properties. Combining first-principles calculations and effective model analysis, we predict that nonmagnetic compounds BaYBi (Y = Au, Ag and Cu) are Dirac semimetals. As for the magnetic compound EuYBi, although the time reversal symmetry is broken, their long-range magnetic ordering cannot split the Dirac point into pairs of Weyl points. However, we propose that partially substitute Eu ions by Ba ions will realize the Weyl semimetal.
