Polaritonic analogue of Datta and Das spin transistor
R. Johne, I. A. Shelykh, D. D. Solnyshkov, and G. Malpuech
TL;DR
This paper introduces a spin-optronic device that uses a polariton BEC to emulate the Datta and Das spin transistor, enabling control of spin states via an effective magnetic field.
Contribution
It presents a novel optical analog of the spin transistor using cavity polariton BECs, bridging spintronics and photonics.
Findings
Demonstrates control of polariton spin states with an effective magnetic field.
Proposes a tunable device for spin manipulation in photonic systems.
Establishes a new platform for spin-optronic device development.
Abstract
We propose the scheme of a novel spin-optronic device, optical analog of Datta and Das spin transistor for the electrons. The role of the ferromagnetic-nonmagnetic contact is played by a spatially confined cavity polariton BEC. The condensate is responsible for the appearance of effective magnetic field which rotates the spin state of a propagating pulse of polaritons allowing to tune the transmittivity of the device.
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