Current Switching Coupled to Molecular Spin-States in Large-Area Junctions

Area of Science:

• Materials Science
• Molecular Electronics
• Condensed Matter Physics

Background:

• Molecular spin-crossover (SCO) complexes offer tunable electronic properties based on their spin state.
• Integrating SCO materials into electronic devices is crucial for developing novel sensors and memory technologies.

Purpose of the Study:

• To fabricate large-area vertical junctions incorporating a molecular spin-crossover complex.
• To demonstrate the correlation between spin-state switching and charge transport properties in these junctions.

Main Methods:

• Fabrication of large-area vertical junctions using a molecular spin-crossover complex.
• Utilizing optical methods to trigger and probe spin-state switching within the SCO layer.
• Measuring associated changes in electrical resistance across the fabricated junctions.

Main Results:

• Successful fabrication of functional large-area vertical junctions with an SCO complex.
• Demonstration of concerted changes in spin degrees of freedom and charge-transport properties.
• Optical triggering of spin-state switching correlated with measurable electrical resistance variations.

Conclusions:

• The fabricated devices enable the study of spin-crossover phenomena in an electronic context.
• This work provides a pathway for developing molecular electronic devices with switchable spin and charge properties.