A peak in density dependence of electron spin relaxation time in $n$-type bulk GaAs in metallic regime

TL;DR

This paper reports the experimental observation of a predicted peak in the electron spin relaxation time as a function of doping density in n-type bulk GaAs within the metallic regime, confirming prior theoretical predictions.

Contribution

It provides the first experimental verification of the density-dependent peak in electron spin relaxation time in n-type GaAs, previously predicted theoretically.

Findings

Experimental confirmation of the density dependence peak.

Validation of theoretical models for spin relaxation.

Enhanced understanding of spin dynamics in GaAs.

Abstract

We demonstrate that the peak in the density dependence of electron spin relaxation time in $n$-type bulk GaAs in the metallic regime predicted by Jiang and Wu [Phys. Rev. B {\bf 79}, 125206 (2009)] has been realized experimentally in the latest work by Krau\ss {\em et al}. [arXiv:0902.0270].