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Professor Broussard and Students Publish Article



Dr. Phill Broussard in the physics classroom

 

In October 2011, an article by Professor of Physics Dr. Phillip Broussard and several students was published in the Journal of Applied Physics. The article’s title is "Proximity effect in Nb-Mo layered films: Transition temperature and critical current dependence on period.”

 

“The focus of the paper,” says Dr. Broussard, “was understanding what happens to the superconductivity in the element niobium when it is put in contact with a material with much poorer superconductivity, molybdenum.  We fabricated layers of the metals using physical vapor deposition (think of steam condensing on a mirror held above boiling water), and by using different sources could layer one material followed by another.  We would repeat the sequence as AB to ABAB, etc., up to ABABABAB.  To our surprise the superconducting properties did not change, which would seem to go against the standard view.”

 

Five Covenant students contributed to this project: Joben Lewis ’10, Zach McElrath ’10, David Myers ’12, James Veldhorst ’12, and Anna Walker ’10. “Collaborating with Dr. Broussard and my fellow students gave me a glimpse into what research is really like,” says David Myers. “It was also a plus to see the hard work and long process of putting together publishable data pay off in the end.” 

 

Click here to read "Proximity effect in Nb-Mo layered films: Transition temperature and critical current dependence on period.”