Ultimate Spin Currents in Commercial Chemical Vapor Deposited Graphene.

ABSTRACT: Establishing ultimate spin current efficiency in graphene over industry-standard substrates can facilitate research and development exploration of spin current functions and spin sensing. At the same time, it can resolve core issues in spin relaxation physics while addressing the skepticism of graphene's practicality for planar spintronic applications. In this work, we reveal an exceptionally long spin communication capability of 45 μm and highest to date spin diffusion length of 13.6 μm in graphene on SiO₂/Si at room temperature. Employing commercial chemical vapor deposited (CVD) graphene, we show how contact-induced surface charge transfer doping and device doping contributions, as well as spin relaxation, can be quenched in extremely long spin channels and thereby enable une

SUBMITTER: Panda J 

PROVIDER: S-EPMC7596785 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature