Bulletin of the American Physical Society
APS March Meeting 2023
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session PP03: V: Spin Transport and Magnetization Dynamics
9:00 AM–11:00 AM,
Tuesday, March 21, 2023
Room: Virtual Room 3
Sponsoring Unit: GMAG
Chair: Josep Ingla Aynes, Technische Universiteit Delft
Abstract: PP03.00001 : Ferroelectric control of the conversion between spin and charge currents
9:00 AM–9:36 AM
Our results demonstrate that the spin-to-charge conversion, due to the spin-orbit coupling, can be controlled in sign in a remanent way, through the ferroelectric polarization. Such a control can lead to the emergence of a ferroelectric spintronics, which could result in a reduction of the power consumption of non-volatile spintronic devices by a factor of one thousand. It also provides a way for a non-destructive readout of ferroelectric states.
This provides new opportunities for creating spin-based devices, such as the MESO transistor proposed recently by Intel , which relies on the writing of a magnetic information through magnetoelectric coupling, and of its reading by spin-charge conversion. Indeed, by controlling directly the sign of the interconversion by a ferroelectric state, it is possible to merge in a single device its writing and reading blocks, and the need for reversing a magnetic state.
In this presentation we will present the basic principle of spin charge current interconversions in Spintronics and then how to control this spin-to-charge conversion, report our results obtained on SrTiO3 2D gases and on GeTe, and discuss the perspective of this work.
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