Control of oxidation and spin state in a single-molecule junction

Abstract

The oxidation and spin state of a metal-organic molecule determine its chemical reactivity and magnetic properties. Here, we demonstrate the reversible control of the oxidation and spin state in a single Fe-porphyrin molecule in the force field of the tip of a scanning tunneling microscope. Within the regimes of half-integer and integer spin state, we can further track the evolution of the magnetocrystalline anisotropy. Our experimental results are corroborated by density functional theory and wave function theory. This combined analysis allows us to draw a complete picture of the molecular states over a large range of intramolecular deformations.

arXiv commentManuscript + Supplementary Information

References in corpus (8)

• Mechanical Control of Spin States in Spin-1 Molecules and the Underscreened Kondo Effect
• Magnetoresistance through a single molecule
• Visualizing the spin of individual molecules
• Protection of excited spin states by a superconducting energy gap
• Reversible Single Spin Control of Individual Magnetic Molecule by Hydrogen Atom Adsorption
• Tuning the magnetic anisotropy of single molecules
• Experimental demonstration of a two-band superconducting state for lead using scanning tunneling spectroscopy
• Spin Inelastic Electron Tunneling Spectroscopy on Local Magnetic Moment Embedded in Josephson Junction

Cited by in corpus (5)

• Designing a mechanically driven spin-crossover molecular switch via organic embedding
• Stochastic Equation of Motion Approach to Fermionic Dissipative Dynamics. II. Numerical Implementation
• Tuning the Spin Interaction in Non-planar Organic Diradicals Through Mechanical Manipulation
• Extending the spin excitation lifetime of a magnetic molecule on a proximitized superconductor
• Co(CO)n/Cu(001): Towards understanding chemical control of the Kondo effect