Single-Walled Carbon Nanotubes for a Strain-based Magnetometer

Author

Getty, Stephanie A. ; Kletetschka, Gunther

Author_Institution

Materials Engineering Branch, Code 541, NASA Goddard Space Flight Center, Greenbelt, USA, Stephanie.A.Getty@nasa.gov

Volume

2

fYear

2006

fDate

17-20 June 2006

Firstpage

465

Lastpage

468

Abstract

A design for a single-walled carbon nanotube (SWCNT) magnetometer will be presented. The operating principle exploits the sensitivity of SWCNT electrical properties to strain. The sensor design consists of a free-standing mat of SWCNTs that is mechanically coupled to a magnetically responsive, high aspect-ratio Fe component. During operation, torque on the Fe needle will transduce ambient magnetic field strength into an electronic signal. Preliminary results of precursor SWCNT material will be presented, including magnetic field- and temperature-dependence of electron transport measurements, and implications for magnetometer operation will be discussed.

Keywords

electromechanical; electron transport; magnetometer; magnetotransport; single-walled carbon nanotube; Carbon nanotubes; Couplings; Iron; Magnetic field induced strain; Magnetic field measurement; Magnetic materials; Magnetic sensors; Magnetometers; Needles; Torque; electromechanical; electron transport; magnetometer; magnetotransport; single-walled carbon nanotube;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology, 2006. IEEE-NANO 2006. Sixth IEEE Conference on

Print_ISBN

1-4244-0077-5

Type

conf

DOI

10.1109/NANO.2006.247688

Filename

1717138