As electronic components approach their fundamental physical limits, molecular electronics offer a promising alternative for next-generation computing and memory technologies. This simulative study explores the potential of rotaxane-based Single Molecule Junctions (SMJs) for memory applications. Through a combination of Molecular Dynamics (MD) simulations and Metadynamics (MetaD) analysis, we identify two distinct molecular states capable of encoding binary information. The energetic barriers to state transitions are evaluated, revealing the mechanisms for data encoding. Furthermore, electrical transport calculation demonstrates a significant current difference between the two configurations, supporting the feasibility of a current-driven readout for conformational-based memory. Our findings highlight the potential of rotaxane-based SMJs for non-volatile, high-density, low-power memory storage, positioning them as strong candidates for future molecular memories in nanocomputing applications.
Rotaxane-Based Single Molecule Junctions for Memory Applications / Listo, Roberto; Mo, Fabrizio; Ravera, Federico; Vezzoli, Andrea; Vacca, Marco; Piccinini, Gianluca; Graziano, Mariagrazia; Ardesi, Yuri. - (2025), pp. 75-79. (Intervento presentato al convegno 2025 IEEE 25th International Conference on Nanotechnology (NANO) tenutosi a Washington DC (USA) nel 13-16 July 2025) [10.1109/NANO63165.2025.11113739].
Rotaxane-Based Single Molecule Junctions for Memory Applications
Roberto Listo;Federico Ravera;Marco Vacca;Gianluca Piccinini;Mariagrazia Graziano;Yuri Ardesi
2025
Abstract
As electronic components approach their fundamental physical limits, molecular electronics offer a promising alternative for next-generation computing and memory technologies. This simulative study explores the potential of rotaxane-based Single Molecule Junctions (SMJs) for memory applications. Through a combination of Molecular Dynamics (MD) simulations and Metadynamics (MetaD) analysis, we identify two distinct molecular states capable of encoding binary information. The energetic barriers to state transitions are evaluated, revealing the mechanisms for data encoding. Furthermore, electrical transport calculation demonstrates a significant current difference between the two configurations, supporting the feasibility of a current-driven readout for conformational-based memory. Our findings highlight the potential of rotaxane-based SMJs for non-volatile, high-density, low-power memory storage, positioning them as strong candidates for future molecular memories in nanocomputing applications.File | Dimensione | Formato | |
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IEEENANO2025_RotaxaneSMJ_AAM.pdf
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https://hdl.handle.net/11583/3002363