Long distance spin communication in chemical vapour deposited graphene
Journal article, 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

Author

Venkata Kamalakar Mutta

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Christiaan Groenveld

Chalmers, Microtechnology and Nanoscience (MC2)

André Dankert

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Saroj Prasad Dash

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Nature Communications

2041-1723 (ISSN)

Vol. 6 6766-

Areas of Advance

Information and Communication Technology

Nanoscience and Nanotechnology (2010-2017)

Materials Science

Subject Categories

Materials Engineering

Physical Sciences

Nano Technology

Roots

Basic sciences

DOI

10.1038/ncomms7766

More information

Created

10/8/2017