Topological Spin-Charge Gearbox on a Real Molecular Magnet

Area of Science:

• Quantum mechanics
• Materials science
• Molecular physics

Background:

• The concept of abstract N-dimensional chains provides a theoretical framework for understanding electron behavior.
• Real molecular systems offer unique properties compared to extended solid-state systems.
• Transition metals are known for their d-electron configurations, crucial for magnetism and electronic properties.

Purpose of the Study:

• To propose and analyze a functional topological spin-charge gearbox.
• To investigate the role of molecular symmetry and laser-driven dynamics in spin-charge transfer.
• To explore the potential of real transition metal clusters as spin information carriers.

Main Methods:

• Utilizing *ab initio* many-body theory for electronic structure calculations.
• Employing laser pulses to manipulate and probe the spin-charge dynamics.
• Analyzing the influence of point group symmetry on electron and spin density transfer.

Main Results:

• First-row transition metals in the Co3Ni(EtOH) cluster host unpaired, correlated d electrons.
• Laser pulses can induce symmetry operations, enabling spin-charge transfer.
• A realizable spin-charge gearbox mechanism is demonstrated in the molecular system.

Conclusions:

• Real molecular systems, specifically transition metal clusters, can function as spin-charge gearboxes.
• Laser-induced symmetry operations are key to controlling spin-charge transfer.
• This work highlights the potential of molecular spintronics for information processing.