Light-controlled multiconfigurational conductance switching in a single 1D metal-organic wire

0585674 - FZÚ 2025 RIV US eng J - Journal Article
Cahlík, Aleš - Ondráček, Martin - Wäckerlin, Christian - Pinar Solé, Andrés - Siri, O. - Švec, Martin - Jelínek, Pavel
Light-controlled multiconfigurational conductance switching in a single 1D metal-organic wire.
ACS Nano. Roč. 18, č. 13 (2024), s. 9576-9583. ISSN 1936-0851. E-ISSN 1936-086X
R&D Projects: GA ČR(CZ) GX20-13692X; GA MŠMT LM2023051
Research Infrastructure: e-INFRA CZ II - 90254
Institutional support: RVO:68378271
Keywords : spin cross over * DFT * SPM
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 17.1, year: 2022
Method of publishing: Open access

Precise control of multiple spin states on the atomic scale presents a promising avenue for designing and realizing magnetic switches. Despite substantial progress in recent decades, the challenge of achieving control over multiconfigurational reversible switches in low-dimensional nanostructures persists. Our work demonstrates multiple, fully reversible plasmon-driven spin-crossover switches in a single pi-d metal-organic chain suspended between two electrodes. The plasmonic nanocavity stimulated by external visible light allows for reversible spin crossover between low- and high-spin states of different cobalt centers within the chain. We show that the distinct spin configurations remain stable for minutes under cryogenic conditions and can be nonperturbatively detected by conductance measurements.
Permanent Link: https://hdl.handle.net/11104/0353361