Electric control of spin transitions at the atomic scale

Piotr Kot, Maneesha Ismail, Robert Drost, Janis Siebrecht, Haonan Huang and Christian R. Ast ()
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Piotr Kot: Max-Planck-Institut für Festkörperforschung
Maneesha Ismail: Max-Planck-Institut für Festkörperforschung
Robert Drost: Max-Planck-Institut für Festkörperforschung
Janis Siebrecht: Max-Planck-Institut für Festkörperforschung
Haonan Huang: Max-Planck-Institut für Festkörperforschung
Christian R. Ast: Max-Planck-Institut für Festkörperforschung

Nature Communications, 2023, vol. 14, issue 1, 1-7

Abstract: Abstract Electric control of spins has been a longstanding goal in the field of solid state physics due to the potential for increased efficiency in information processing. This efficiency can be optimized by transferring spintronics to the atomic scale. We present electric control of spin resonance transitions in single TiH molecules by employing electron spin resonance scanning tunneling microscopy (ESR-STM). We find strong bias voltage dependent shifts in the ESR signal of about ten times its line width. We attribute this to the electric field in the tunnel junction, which induces a displacement of the spin system changing the g-factor and the effective magnetic field of the tip. We demonstrate direct electric control of the spin transitions in coupled TiH dimers. Our findings open up new avenues for fast coherent control of coupled spin systems and expands on the understanding of spin electric coupling.

Date: 2023
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DOI: 10.1038/s41467-023-42287-2

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