Spring Research Conference

A Single-walled Carbon Nanotube-based Nanocompass for High Spatial Resolution Magnetometry. - Jonathon A. Brame

Personal Information
First Name: 
Jonathon A.
Last Name: 
Brame
Abstract Information
Department: 
Physics and Astronomy
Faculty Advisor: 
David Allred
Additional Authors: 
Johnathan Goodsell, Stephanie A. Getty
Title of Abstract: 
A Single-walled Carbon Nanotube-based Nanocompass for High Spatial Resolution Magnetometry.

A design for a single-walled carbon nanotube (SWCNT) nanocompass will be presented. The operating principle exploits the sensitivity of SWCNT electrical properties to strain. The sensor design resembles classical compass with electronic readout. The sensor consists of a magnetically responsive, high aspect-ratio Fe component suspended on a free-standing mat of electrically contacted SWCNTs. During operation, torque on the Fe needle will transduce ambient magnetic field strength into an electronic signal. We will discuss fabrication of the magnetometer and preliminary data as well as magnetic field- and temperature-dependence of electron transport measurements and sensitivity calculations.

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