能带结构计算及角分辨光电子能谱测量 (IMAGE) Science China Press Caption (a)对于EuTi3Bi4 (b) 不同原子贡献的表面态及(c)对应费米表面的能带结构投影(c) 考虑自选轨道耦合的二维投影表面态(U = 6 eV). (d)–(f) 实验测量(d) EuTi3Bi4, (e) GdTi3Bi4, and (f) SmTi3Bi4的费米表面(光子能量 100 eV) (g–i) 对于(g) EuTi3Bi4, (h) GdTi3Bi4, (i) SmTi3Bi4分别沿Γ ̅-Κ ̅-Μ ̅方向测量的能带色散,其中计算的体能带图附在(g)中。 Credit ©《中国科学》杂志社 Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.