Ph.D. Defense by John Hankinson

Event Details
  • Date/Time:
    • Thursday May 14, 2015
      12:00 pm - 2:00 pm
  • Location: Howey N110
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Summary Sentence: SPIN DEPENDENT CURRENT INJECTION INTO EPITAXIAL GRAPHENE NANORIBBONS

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Title: SPIN DEPENDENT CURRENT INJECTION INTO EPITAXIAL GRAPHENE NANORIBBONS

 

Author: John Hankinson

 

Date: May 14th at 12:00pm

 

Location: Howey N110

 

Thesis Advisor: Dr. Walt de Heer

 

Abstract:

 

Over the past decade there has been a great deal of interest in graphene, a 2-dimensional allotrope of carbon with exceptional mechanical and electrical properties.  Its outstanding mobility, minimal size, and mechanical stability make it an appealing material for use in next generation electronic devices.  Epitaxial graphene growth on silicon carbide is a reliable, scalable method for the production of high quality graphene films.  Recent work has shown that the SiC can be patterned prior to graphitization, in order to selectively grow graphene nanostructures.  Graphene nanoribbons grown using this technique do not suffer from the rough edges caused by lithographic patterning, and recent measurements have revealed extraordinary transport properties.  In this thesis the magnetic properties of these nanoribbons are investigated through spin polarized current injection.  The sensitivity of these nanoribbons to spin polarized current is interesting from a fundamental physics standpoint, and may find applications in future spintronic devices.

 

Committee: Dr. Walt de Heer, Dr. Phillip First, Dr. Edward Conrad, Dr. Zhigang Jiang, Dr. Robbert Haddon

 

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Keywords
defense, graduate students, PhD
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  • Created By: Tatianna Richardson
  • Workflow Status: Published
  • Created On: May 6, 2015 - 7:48am
  • Last Updated: Oct 7, 2016 - 10:11pm