Effect of Ethanol on the Magnetic Properties of Gold and Cobalt Bilayer Film

School Name

Governor's School for Science & Mathematics

Grade Level

12th Grade

Presentation Topic

Physics

Presentation Type

Mentored

Mentor

Mentor: Scott Crittenden, University of South Carolina

Abstract

This research focuses on how the suface application of ethanol to very thin gold/cobalt bilayer films affects the magnetic hardness of the material. The planar Hall voltage resulting from an applied voltage and magnetic field was measured and plotted through 600 oscillations. Two peaks are repeated through every oscillations and can descibe magnetic properties of the material. An increase in the distance signifies it has become magnetically harder making it more difficult to switch the dipoles back and forth. It was found that ethanol shrinks the distance between the peaks making it easier to switch the dipoles which is useful to consider when making computer hard drive read write heads.

Location

Wall 307

Start Date

3-25-2017 9:45 AM

Presentation Format

Oral and Written

Group Project

No

COinS
 
Mar 25th, 9:45 AM

Effect of Ethanol on the Magnetic Properties of Gold and Cobalt Bilayer Film

Wall 307

This research focuses on how the suface application of ethanol to very thin gold/cobalt bilayer films affects the magnetic hardness of the material. The planar Hall voltage resulting from an applied voltage and magnetic field was measured and plotted through 600 oscillations. Two peaks are repeated through every oscillations and can descibe magnetic properties of the material. An increase in the distance signifies it has become magnetically harder making it more difficult to switch the dipoles back and forth. It was found that ethanol shrinks the distance between the peaks making it easier to switch the dipoles which is useful to consider when making computer hard drive read write heads.