论文类型：期刊论文
合写作者：Peizhe Tang, Quan Zhou, Gang Xu, Shou-Cheng Zhang
发表刊物：Nature Physics
收录刊物：SCI
学科门类：理学
一级学科：物理学
卷号：12
期号：12
页面范围：1100
发表时间：2015-12-22
摘要：Analogues of the elementary particles have been extensively searched for in condensed-matter systems for both scientific interest and technological applications 1, 2, 3. Recently, massless Dirac fermions were found to emerge as low-energy excitations in materials now known as Dirac semimetals 4, 5, 6. All of the currently known Dirac semimetals are non-magnetic with both time-reversal symmetry and inversion symmetry 7, 8, 9. Here we show that Dirac fermions can exist in one type of antiferromagnetic system, where both and are broken but their combination is respected.