Spin Hall effect transistor

Abstract

Spin transistors and spin Hall effects have been two separate leading directions of research in semiconductor spintronics which seeks new paradigms for information processing technologies. We have brought the two directions together to realize an all-semiconductor spin Hall effect transistor. Our scheme circumvents semiconductor-ferromagnet interface problems of the original Datta-Das spin transistor concept and demonstrates the utility of the spin Hall effects in microelectronics. The devices use diffusive transport and operate without electrical current, i.e., without Joule heating in the active part of the transistor. We demonstrate a spin AND logic function in a semiconductor channel with two gates. Our experimental study is complemented by numerical Monte Carlo simulations of spin-diffusion through the transistor channel.

11 pages, 3 figures

References in corpus (9)

• Dissipationless Quantum Spin Current at Room Temperature
• Direct electronic measurement of the spin Hall effect
• Electrical Detection of Spin Transport in Lateral Ferromagnet-Semiconductor Devices
• An Exact SU(2) Symmetry and Persistent Spin Helix in a Spin-Orbit Coupled System
• Coherent spin transport through a 350-micron-thick Silicon wafer
• Non-diffusive spin dynamics in a two-dimensional electron gas
• Electrical Measurement of the Direct Spin Hall Effect in Fe/In_xGa_{1-x}As Heterostructures
• Modeling of diffusion of injected electron spins in spin-orbit coupled microchannels
• Low-dimensional light-emitting transistor with tunable recombination zone

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