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AUTHOR COMMENTARIES - From Special Topics

High-Temperature Superconductors - February 2009
Revised: April 2009*
Interview Date: August 2009
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David Cardwell holding a bulk single grain sample of superconducting Y-Ba-Cu-O being levitated by a permanent magnet.
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David Cardwell
From the Special Topic of High-Temperature Superconductors
The superconducting materials of interest for engineering applications have a transition temperature, below which they become superconducting, that is at or above 77 K, the boiling point of liquid nitrogen, which is an inexpensive coolant.

 

 

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Figures and descriptions:

Figure 1:  
Figure 1:

Pictured (left to right): back; David Cardwell, Archie Campbell, Tony Dennis. Front; Yun-Hua Shi, Zhihan Xu, Sandeep Pathak.


Figure 2:
Figure 2:

A bulk single grain sample of superconducting Y-Ba-Cu-O being levitated by a permanent magnet.  


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Special Topics : High-Temperature Superconductors : David Cardwell Interview - Figures & Descriptions - Special Topic of High-Temperature Superconductors