Abstract
All-atom—all-electron self-consistent semirelativistic linear muffin-tin orbital energy-band studies are reported for Ti, Zr (at ambient and high pressures), the high- superconductor Zr, and the ultralow- superconductor Y. Total and partial (by atom type and values) density of states, Stoner-like parameters, electron-phonon coupling parameter and superconducting transition temperatures (determined within the rigid muffin-tin approximation and McMillan's strong coupling theory with and without paramagnon contributions), and their behavior under applied pressure are used to discuss the origin of their observed magnetism and/or superconductivity. From an analysis of the results, we suggest possible high- superconductivity at high pressure for Zr, and its unlikely occurrence for Ti unless dominant soft phonon modes exist.
- Received 20 July 1979
DOI:https://doi.org/10.1103/PhysRevB.22.2332
©1980 American Physical Society