Small epitaxial graphene devices for magnetosensing applications
Artikel i vetenskaplig tidskrift, 2012

Hall sensors with the width range from 0.5 to 20.0 mu m have been fabricated out of a monolayer graphene epitaxially grown on SiC. The sensors have been studied at room temperature using transport and noise spectrum measurements. The minimum detectable field of a typical 10-mu m graphene sensor is approximate to 2.5 mu T/root Hz, making them comparable with state of the art semiconductor devices of the same size and carrier concentration and superior to devices made of CVD graphene. Relatively high resistance significantly restricts performance of the smallest 500-nm devices. Carrier mobility is strongly size dependent, signifying importance of both intrinsic and extrinsic factors in the optimization of the device performance

sensors

microscopy

Författare

V. Panchal

RHUL

National Physical Laboratory (NPL)

Karin Cedergren

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

R. Yakimova

Linköpings universitet

A.Y. Tzalenchuk

National Physical Laboratory (NPL)

Sergey Kubatkin

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

O. Kazakova

National Physical Laboratory (NPL)

Journal of Applied Physics

0021-8979 (ISSN) 1089-7550 (eISSN)

Vol. 111 07E509

Ämneskategorier

Nanoteknik

DOI

10.1063/1.3677769