Direct creation of electron–hole plasma by exciton Mott transition in CuCl
Direct creation of electron–hole plasma by exciton Mott transition in CuCl
复制标题
CuCl 中激子莫特跃迁直接产生电子空穴等离子体
DOI：
10.1016/s0022-2313(99)00258-6
复制
发表时间：
2000
影响因子：
3.6
通讯作者：
M. Kuwata
中科院分区：
文献类型：
--
作者：
M. Nagai;R. Shimano;M. Kuwata
我们进行飞秒时间分辨发射测量CuCl的激子的共振激发下的莫特跃迁密度以上。冷电子空穴等离子体（EHP）气体的发射出现了几皮秒的延迟时间。EHP气体的温度和密度持续降低，直到温度达到20K，密度达到5×1018cm− 3，低于激子的密堆密度，但高于双激子的密堆密度。
We perform femtosecond time-resolved emission measurement in CuCl under the resonant excitation of excitons above Mott transition density. Emission from cold electron–hole plasma (EHP) gas appears with a delay time of few picoseconds. The EHP gas shows a continuous reduction of temperature and density until it reaches a state with temperature of 20K and density of 5×1018cm−3below the closed pack density of excitons but above that of biexcitons.