Affordable Access

Access to the full text

Graphene spin capacitor for magnetic field sensing

Authors
  • Semenov, Y. G.
  • Zavada, J. M.
  • Kim, K. W.
Type
Preprint
Publication Date
May 13, 2010
Submission Date
May 13, 2010
Identifiers
DOI: 10.1063/1.3462297
Source
arXiv
License
Yellow
External links

Abstract

An analysis of a novel magnetic field sensor based on a graphene spin capacitor is presented. The proposed device consists of graphene nanoribbons on top of an insulator material connected to a ferromagnetic source/drain. The time evolution of spin polarized electrons injected into the capacitor can be used for an accurate determination at room temperature of external magnetic fields. Assuming a spin relaxation time of 100 ns, magnetic fields on the order of $\sim 10$ mOe may be detected at room temperature. The observational accuracy of this device depends on the density of magnetic defects and spin relaxation time that can be achieved.

Report this publication

Statistics

Seen <100 times