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- W2938549326 abstract "Abstract Electronic and vibrational intra-molecular thermoelectric-like figures of merit <?CDATA $({{ZT}}_{gamma }^{M})$?> <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML overflow=scroll> <mml:mo stretchy=false>(</mml:mo> <mml:msubsup> <mml:mrow> <mml:mi mathvariant=italic>ZT</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>γ</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>M</mml:mi> </mml:mrow> </mml:msubsup> <mml:mo stretchy=false>)</mml:mo> </mml:math> are introduced for single molecule nanoelectronic system, using quantum theory of atoms in molecule. These figures of merit are used to describe intra-molecular or local energy dissipation/transition (as in Joule-like, Peltier-like, and Thomson-like effects) in field effect molecular devices. The <?CDATA ${{ZT}}_{gamma }^{M}$?> <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML overflow=scroll> <mml:msubsup> <mml:mrow> <mml:mi mathvariant=italic>ZT</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>γ</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>M</mml:mi> </mml:mrow> </mml:msubsup> </mml:math> figures of merit are computed for two proposed molecular devices. Analysis of the results shows that <?CDATA ${{ZT}}_{gamma }^{M}$?> <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML overflow=scroll> <mml:msubsup> <mml:mrow> <mml:mi mathvariant=italic>ZT</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>γ</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>M</mml:mi> </mml:mrow> </mml:msubsup> </mml:math> depends almost non-linearly on the electric field (EF) strength. Also, the intra-molecular Joule-like heating plays a dominant role in the local energy dissipation, and intra-molecular Thomson-like heating is generally larger than the intra-molecular Peltier-like heating. Introduction of <?CDATA ${{ZT}}_{gamma }^{M}$?> <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML overflow=scroll> <mml:msubsup> <mml:mrow> <mml:mi mathvariant=italic>ZT</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>γ</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>M</mml:mi> </mml:mrow> </mml:msubsup> </mml:math> can be applied to extend the analysis of thermoelectric heating down to molecular and intra-molecular levels, and thus can be used to predict characteristics and performance of any candidate multi-terminal or multi-pole molecular systems prior to their application in real nanoelectronic circuits ." @default.
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- W2938549326 date "2019-04-01" @default.
- W2938549326 modified "2023-09-26" @default.
- W2938549326 title "Local Energy Dissipation/Transition in Field Effect Molecular Nanoelectronic Systems: a Quantum Mechanical Methodology" @default.
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