Light-Controlled Multiconfigurational Conductance Switching in a Single 1D Metal-Organic Wire.

Autor:	Cahlík A; Institute of Physics of the Czech Academy of Sciences, Prague, 16200, Czech Republic.; Department of Physics, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland., Ondráček M; Institute of Physics of the Czech Academy of Sciences, Prague, 16200, Czech Republic., Wäckerlin C; Institute of Physics of the Czech Academy of Sciences, Prague, 16200, Czech Republic.; Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), Station 3, CH-1015 Lausanne, Switzerland.; Laboratory for X-ray Nanoscience and Technologies, Paul-Scherrer-Institut (PSI), CH-5232 Villigen, PSI, Switzerland., Solé AP; Institute of Physics of the Czech Academy of Sciences, Prague, 16200, Czech Republic., Siri O; Aix Marseille Université, CINaM UMR 7325 CNRS, Campus de Luminy, 13288 Marseille cedex 09, France., Švec M; Institute of Physics of the Czech Academy of Sciences, Prague, 16200, Czech Republic., Jelínek P; Institute of Physics of the Czech Academy of Sciences, Prague, 16200, Czech Republic.; Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, 78371 Olomouc, Czech Republic.
Jazyk:	angličtina
Zdroj:	ACS nano [ACS Nano] 2024 Apr 02; Vol. 18 (13), pp. 9576-9583. Date of Electronic Publication: 2024 Mar 22.
DOI:	10.1021/acsnano.3c12909
Abstrakt:	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 π-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. This multiconfigurational plasmon-driven spin-crossover demonstration extends the available toolset for designing optoelectrical molecular devices based on SCO compounds.
Databáze:	MEDLINE
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