Monday, May 4, 2009

How to turn lead pencils into diamonds

Tomorrows lecture concerns more examples of phase diagrams and using thermodynamic relations, such as dG=-SdT + VdP
to give a quantitative description of features. One goal is to show how knowing just the free energy difference between graphite and diamond at ambient pressure and the differences in density between the two it is possible to get a reasonably reliable estimate of the pressure needed to convert graphite into diamond.

I also introduce superconductors as a new phase of matter and their phase diagram in magnetic field. Here is the latest version of the lecture.

1 comment:

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