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We report on the measurements of spin relaxation in GaAsquasi-one-dimensional mesowires, relying on spin noise spectroscopy, thusadding to the existing body of spin relaxation studies in bulk, two-dimensionaland zero dimensional systems. In addition to temperature and magnetic fielddependence, we modify the spin relaxation time via applied electric field andaspect ratio of the mesowires, suggesting that scalable spintronics deviceswith controllable spin relaxation are achievable. Overall, we observed higherspin-relaxation time in mesowires compared to bulk with a spin noise exhibitingDyakonov-Perel scattering and other scattering behavior. Spectral spin noisedata are interpreted in part via Glazov-Sherman model, where both, diffusiveand ballistic spin relaxation are accounted for.

Spin Relaxation in Quasi-1D GaAs Mesowires: Control via Electric Field and Aspect Ratio