Superconducting and topological states are two most intriguing quantum phenomena in solid materials.The entanglement of these two states,the topological superconducting state,will give rise to even mo
VO2 在340 K 发生结构相变并伴随着陡峭的金属-绝缘体转变,并在激光防护、红外探测、低功耗场效应管等领域具有巨大的应用价值。研究金属-绝缘体转变的起源对于理解强关联电子体系以及物性调控具有重要意义,本征VO2 室温下以单斜绝缘态存在,通过超快激光诱导、高压调制等手段可以实现其室温下具有金属态特性,然而理解这种金属态的来源尚存在争议。
Coherent intermolecular dipole-dipole coupling plays a key role in various resonant energy transfer and luminescence phenomena,from exciton dynamics in molecular aggregates and biological lightharvest
Topological phase transitions,which have fascinated generations of physicists,are always marked by gap closures.In this work,we study the topological properties of gap closure points,i.e.band degenera