Artículo
Spin-state-dependent electrical conductivity in single-walled carbon nanotubes encapsulating spin-crossover molecules
Autor/es | Villalva, Julia
Develioglu, Aysegul Montenegro Pohlhammer, Nicolás Sánchez de Armas, María Rocío Gamonal, Arturo Rial, Eduardo García Hernández, Mar Ruiz González, Luisa Sánchez Costa, José Jiménez Calzado, Carmen Pérez, Emilio M. Burzuri, Enrique |
Departamento | Universidad de Sevilla. Departamento de Química Física |
Fecha de publicación | 2021 |
Fecha de depósito | 2022-10-24 |
Publicado en |
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Premios | Premio Anual Publicación Científica Destacada de la US. Facultad de Química |
Resumen | Spin crossover (SCO) molecules are promising nanoscale magnetic switches due to their ability to modify their spin state under several stimuli. However, SCO systems face several bottlenecks when downscaling into nanoscale ... Spin crossover (SCO) molecules are promising nanoscale magnetic switches due to their ability to modify their spin state under several stimuli. However, SCO systems face several bottlenecks when downscaling into nanoscale spintronic devices: their instability at the nanoscale, their insulating character and the lack of control when positioning nanocrystals in nanodevices. Here we show the encapsulation of robust Fe-based SCO molecules within the 1D cavities of single-walled carbon nanotubes (SWCNT). We find that the SCO mechanism endures encapsulation and positioning of individual heterostructures in nanoscale transistors. The SCO switch in the guest molecules triggers a large conductance bistability through the host SWCNT. Moreover, the SCO transition shifts to higher temperatures and displays hysteresis cycles, and thus memory effect, not present in crystalline samples. Our results demonstrate how encapsulation in SWCNTs provides the backbone for the readout and positioning of SCO molecules into nanodevices, and can also help to tune their magnetic properties at the nanoscale. |
Agencias financiadoras | Marie Skłodowska-Curie Actions (MSCA) Programa de Atracción del Talento Investigador. Comunidad de Madrid Ministerio de Economia, Industria y Competitividad (MINECO). España Consejo Europeo de Investigación (ERC) Comunidad Autónoma de Madrid NANOMAGCOST |
Identificador del proyecto | 74657
2017-T1/IND-5562 CTQ2017-86060-P PID2019-111479GB-100 MAT 2017-8225 GC2018-101689-B-I00 ERC-StG-307609 ERC-PoC-842606 MAD2D-CM S2013/ MIT-3007 PEJD-2017-PRE/IND-4037 Y2018/NMT- 4783 P2018/ NMT-4321 |
Cita | Villalva, J., Develioglu, A., Montenegro Pohlhammer, N., Sánchez de Armas, M.R., Gamonal, A., Rial, E.,...,Burzuri, E. (2021). Spin-state-dependent electrical conductivity in single-walled carbon nanotubes encapsulating spin-crossover molecules. Nature Communications, 12 (1), 1578. https://doi.org/10.1038/s41467-021-21791-3. |
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