Long distance spin communication in chemical vapour deposited graphene
Artikel i vetenskaplig tidskrift, 2015

Graphene is an ideal medium for long-distance spin communication in future spintronic technologies. So far, the prospect is limited by the smaller sizes of exfoliated graphene flakes and lower spin transport properties of large-area chemical vapour-deposited (CVD) graphene. Here we demonstrate a high spintronic performance in CVD graphene on SiO2/Si substrate at room temperature. We show pure spin transport and precession over long channel lengths extending up to 16 μm with a spin lifetime of 1.2 ns and a spin diffusion length ~6 μm at room temperature. These spin parameters are up to six times higher than previous reports and highest at room temperature for any form of pristine graphene on industrial standard SiO2/Si substrates. Our detailed investigation reinforces the observed performance in CVD graphene over wafer scale and opens up new prospects for the development of lateral spin-based memory and logic applications.

room temperature

spintronics

graphene

CVD

spin transport

Författare

Venkata Kamalakar Mutta

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Christiaan Groenveld

Chalmers, Mikroteknologi och nanovetenskap (MC2)

André Dankert

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Saroj Prasad Dash

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Nature Communications

2041-1723 (ISSN)

Vol. 6 6766-

Styrkeområden

Informations- och kommunikationsteknik

Nanovetenskap och nanoteknik

Materialvetenskap

Ämneskategorier

Materialteknik

Fysik

Nanoteknik

Fundament

Grundläggande vetenskaper

DOI

10.1038/ncomms7766

Mer information

Skapat

2017-10-08