Theory of the hcp-fcc transition in metals
- 8 July 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 55 (2) , 214-217
- https://doi.org/10.1103/physrevlett.55.214
Abstract
A theory is developed for the hcp-fcc structural phase transition in close-packed metals as a function of the average electron concentration per atom. It is found that the transition can be continuous at low temperatures. Ordered polytypic stacking sequences are found near the transition point. Short-period structures are stabilized by Fermi-surface effects but long-period structures result from elastic distortion of the lattice. Unusual ‘‘staircase’’ crystallographic data for Mg-based Friauf-Laves alloys are accounted for successfully and the structure of rare-earth intermetallic alloys is discussed.Keywords
This publication has 12 references indexed in Scilit:
- Crystal structure from one-electron theoryPhysical Review B, 1985
- Crystal Structure of Lithium at 4.2 KPhysical Review Letters, 1984
- Exact models with a complete Devil's staircaseJournal of Physics C: Solid State Physics, 1983
- Commensurate phases, incommensurate phases and the devil's staircaseReports on Progress in Physics, 1982
- Structural studies of stacking variants in Mg-base Friauf–Laves phasesActa Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 1980
- The Devil's staircase and harmless staircase. I. Oscillating interactions through elastic strains or other harmonic fieldsJournal of Physics C: Solid State Physics, 1980
- Long-period stacking variants and their electron-concentration dependence in the Mg-base Friauf–Laves phasesActa Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 1977
- Correlation between-Band Occupancy and Crystal Structure in the Rare EarthsPhysical Review Letters, 1977
- On the relative energies of simple metallic structuresActa Metallurgica, 1974
- Long period stacking order in close packed structures of metalsJournal of Physics and Chemistry of Solids, 1967