Ryu, Hyejin Park, Se Young Li, Lijun Ren, Weijun Neaton, Jeffrey B. Petrovic, Cedomir Hwang, Choongyu Mo, Sung-Kwan 2024-01-19T21:33:47Z 2024-01-19T21:33:47Z 2021-09-05 2018-10 2045-2322 https://pubs.kist.re.kr/handle/201004/120837 We investigate the electronic structure of BaMnBi2 and BaZnBi2 using angle-resolved photoemission spectroscopy and first-principles calculations. Although they share similar structural properties, we show that their electronic structure exhibit dramatic differences. A strong anisotropic Dirac dispersion is revealed in BaMnBi2 with a decreased asymmetry factor compared with other members of AMnBi(2) (A = alkali earth or rare earth elements) family. In addition to the Dirac cones, multiple bands crossing the Fermi energy give rise to a complex Fermi surface topology for BaZnBi2. We further show that the strength of hybridization between Bi-p and Mn-dZn-s states is the main driver of the differences in electronic structure for these two related compounds. English Nature Publishing Group Anisotropic Dirac Fermions in BaMnBi2 and BaZnBi2 Article 10.1038/s41598-018-33512-w 1 Scientific Reports, v.8 Scientific Reports 8 Y scie scopus 000447511100029 2-s2.0-85055072734 Multidisciplinary Sciences Science & Technology - Other Topics Article CRYSTAL-STRUCTURE