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Author Liu, J.; Xu, W.; Xiao, Y.M.; Ding, L.; Li, H.W.; Peeters, F.M. url  doi
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  Title Optical spectrum of n-type and p-type monolayer MoS₂ in the presence of proximity-induced interactions Type A1 Journal article
  Year (down) 2023 Publication Journal of applied physics Abbreviated Journal  
  Volume 134 Issue 22 Pages 224301-224307  
  Keywords A1 Journal article; Condensed Matter Theory (CMT)  
  Abstract In this paper, we examined the effects of proximity-induced interactions such as Rashba spin-orbit coupling and effective Zeeman fields (EZFs) on the optical spectrum of n-type and p-type monolayer (ML)-MoS2. The optical conductivity is evaluated using the standard Kubo formula under random-phase approximation by including the effective electron-electron interaction. It has been found that there exist two absorption peaks in n-type ML-MoS2 and two knife shaped absorptions in p-type ML-MoS2, which are contributed by the inter-subband spin-flip electronic transitions within conduction and valence bands at valleys K and K ' with a lifted valley degeneracy. The optical absorptions in n-type and p-type ML-MoS 2 occur in THz and infrared radiation regimes and the position, height, and shape of them can be effectively tuned by Rashba parameter, EZF parameters, and carrier density. The interesting theoretical predictions in this study would be helpful for the experimental observation of the optical absorption in infrared to THz bandwidths contributed by inter-subband spin-flip electronic transitions in a lifted valley degeneracy monolayer transition metal dichalcogenides system. The obtained results indicate that ML-MoS2 with the platform of proximity interactions make it a promising infrared and THz material for optics and optoelectronics.  
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  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Wos 001135684400003 Publication Date 2023-12-11  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0021-8979; 1089-7550 ISBN Additional Links UA library record; WoS full record  
  Impact Factor 3.2 Times cited Open Access  
  Notes Approved Most recent IF: 3.2; 2023 IF: 2.068  
  Call Number UA @ admin @ c:irua:202777 Serial 9069  
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