Fermi surface of technetium from a constant-energy-search Korringa-Kohn-Rostoker band-theory calculation

We generate two muffin-tin potentials for technetium using Slater exchange and calculate the Fermi energies and Fermi surfaces very accurately using the constant-energy-search Korringa-Kohn-Rostoker method. An explanation for experimental de Haas-van Alphen frequencies that were not previously understood is proposed. The bare-band theory contribution to the low-temperature specific heat is ${\lambda }_0=2.12\mathrm{}$ mJ/mole ${\mathrm{K}}^2$ for the better potential. We demonstrate the feasibility of using the methods outlined in this paper for carrying out highly detailed calculations on hcp metals.