Exotic electronic states in the world of flat bands： From theory to material

• Published in: Chinese physics B Vol. 23; no. 7; pp. 1 - 12
• Main Authors: Liu, Zheng, Liu, Feng, Wu, Yong-Shi
• Format: Journal Article
• Language: English
• Published: 01.07.2014
• Subjects: Band theory; Bands; Dispersions; Electron states; Flats; Kinetic energy; Lattices; Phases; 世界; 分数量子; 平带; 情调; 材料; 电子态; 简并能级; 超导电性

It has long been noticed that special lattices contain single-electron flat bands （FB） without any dispersion. Since the kinetic energy of electrons is quenched in the FB, this highly degenerate energy level becomes an ideal platform to achieve strongly correlated electronic states, such as magnetis...