期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Tunable terahertz acoustic-phonon emission from monolayer molybdenum disulfide
1
作者 cheng-xiang zhao Miao-Miao Zheng +1 位作者 Yuan Qie Fang-Wei Han 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第12期470-475,共6页
The acoustic-phonon emission from monolayer molybdenum disulfide(ML-MoS_(2))driven by a direct-current electric field is studied theoretically using the Boltzmann equation method.It is found that the Cerenkov emission... The acoustic-phonon emission from monolayer molybdenum disulfide(ML-MoS_(2))driven by a direct-current electric field is studied theoretically using the Boltzmann equation method.It is found that the Cerenkov emission of terahertz acoustic-phonons can be generated when a very weak electric field is applied to ML-MoS_(2).The physical mechanisms of acoustic-phonon emission are analyzed from the perspective of condensed matter physics.The acoustic-phonon emission from ML-MoS_(2)is also compared with those from graphene and GaAs.The results reveal that the frequencies of acousticphonons generated by ML-MoS_(2)are between the frequencies of those generated from GaAs and graphene.The results of this work suggest that the ML-MoS_(2)can make up for graphene and GaAs in respect of acoustic-phonon emission and be used in tunable hypersonic devices such as terahertz sound sources. 展开更多
关键词 acoustic-phonon emission TERAHERTZ monolayer molybdenum disulfide
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部