https://doi.org/10.1140/epjp/s13360-025-07267-z
Regular Article
Enhanced spin-relevant performance in molecular magnetic tunnel junctions with embedded g-C
N
nanoribbons
1
College of Sciences, Shenyang Institute of Engineering, 110136, Shenyang, China
2
College of Sciences, Northeastern University, 110819, Shenyang, China
a
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Received:
27
May
2025
Accepted:
29
December
2025
Published online:
16
January
2026
Abstract
This work theoretically designs the g-CN nanoribbons (CNNRs) with different widths, by cutting graphitic carbon nitride (g-CN) in a specific direction. And then, spin-dependent transport features are investigated in the molecular magnetic tunnel junctions (MMTJs) formed by the serially coupling between CNNRs and two zigzag graphene nanoribbons, with the help of density functional theory (DFT) and nonequilibrium Green’s function approach. The calculated results show that such MMTJs display special transport behaviors, including the notable spin-filtering effects, abnormal magnetoresistance, and negative differential resistance. Moreover, altering the spin configurations generates two distinct net spin currents, and the tunneling magnetoresistance magnitude may approach its maximum order of 
under the appropriate conditions. We thus believe that these findings propose g-CN-based materials to be promising MMTJs well suited for the utilization in future spintronic devices.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2026
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
