Spin-Electric Coupling in Molecular Magnets

Abstract

We study the triangular antiferromagnet Cu${}_3$ in external electric fields, using symmetry group arguments and a Hubbard model approach. We identify a spin-electric coupling caused by an interplay between spin exchange, spin-orbit interaction, and the chirality of the underlying spin texture of the molecular magnet. This coupling allows for the electric control of the spin (qubit) states, e.g. by using an STM tip or a microwave cavity. We propose an experimental test for identifying molecular magnets exhibiting spin-electric effects.

5 pages, 3 figures

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• Field-dependent superradiant quantum phase transition of molecular magnets in microwave cavities
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• Decoherence of intermolecular entanglement in exchange-coupled nanomagnets
• Tailoring Effective Exchange Interactions via Domain Walls in Coupled Heisenberg Rings
• Spin-electric Berry phase shift in triangular molecular magnets
• Finite-temperature decoherence of spin states in a $\text{{}{\text{Cu}}_3\text{}}$ single molecular magnet
• Non-collinear first-principles studies of the spin-electric coupling in frustrated triangular molecular magnets
• Family of exactly solvable models with an ultimative quantum paramagnetic ground state
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• Detection of the electrostatic spin crossover effect in magnetic molecules
• Quantum machines using ${\mathrm{Cu}}_3$-like compounds modeled by Heisenberg antiferromagnetic in a triangular ring
• Landau-Zener Transitions in Spin Qubit Encoded in Three Quantum Dots
• Universal Non-adiabatic Holonomic Gates in Quantum Dots and Single-Molecule Magnets
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• Magnetoelectric effect in the mixed valence polyoxovanadate cage V${}_{12}$