In the pursuit of novel quantum states of matter,condensed matter physicists have long been fascinated by lattice geometries that host flat electronic bands.These bands,characterized by quenched electronic kinetic ene...In the pursuit of novel quantum states of matter,condensed matter physicists have long been fascinated by lattice geometries that host flat electronic bands.These bands,characterized by quenched electronic kinetic energy,are a fertile ground for strong electron correlations,leading to a diversity of emergent phenomena,such as unconventional superconductivity,magnetism,and fractional quantum Hall effects.[1]Among these,the Lieb lattice,i.e.,a two-dimensional square lattice with a basis of one corner and two edge states,holds a special place with its electronic band structure featuring a massless Dirac cone pierced by a perfectly flat band.展开更多
文摘In the pursuit of novel quantum states of matter,condensed matter physicists have long been fascinated by lattice geometries that host flat electronic bands.These bands,characterized by quenched electronic kinetic energy,are a fertile ground for strong electron correlations,leading to a diversity of emergent phenomena,such as unconventional superconductivity,magnetism,and fractional quantum Hall effects.[1]Among these,the Lieb lattice,i.e.,a two-dimensional square lattice with a basis of one corner and two edge states,holds a special place with its electronic band structure featuring a massless Dirac cone pierced by a perfectly flat band.
