PRESSURE DEPENDENCE OF PHONONS AND Tc
We have studied the pressure dependence of the structural
and electronic properties of MgB2 from first-principles
calculations. We have also calculated the pressure dependencies
of the anharmonic boron in-plane modes and the electron-phonon
coupling constant. Combining all these in McMillan expression,
we estimate the pressure dependence of the Tc. The results
are in excellent agreement with the available experimental
data.
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