Quantum description of a charged plasmonics nanowire dimer

Dan Xiang, Hong Zhang, Lorenzo Stella, Fan Yang

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The charging effect has been a ubiquitous phenomenon in our daily lives. Here, we investigate the role played by this effect in a prototype nanowire dimer structure with an ab initio density-functional approach. Various charging configurations for the nanowire dimer have been explored, showing that the excess charge strongly modulates the ground and excited state. Furthermore, the opposite charging of the nanowire dimer breaks the symmetry of electron distribution and potential barrier, facilitating the formation of a charge-transfer current through the gap.
Original languageEnglish
Article number245407
JournalPhysical Review B
Issue number24
Publication statusPublished - 06 Jun 2024

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