Theory of hydrogen pairing in yttrium
- 25 September 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 63 (13), 1396-1399
- https://doi.org/10.1103/physrevlett.63.1396
Abstract
The energetics of hydrogen atoms interacting with yttrium have been investigated using the self-consistent cluster model and the local-density approximation. Our results provide a theoretical understanding of a range of novel phenomena observed recently in resistivity, neutron scattering, NMR, and channeling experiments. These include pairing of hydrogen at low temperatures and their structural origin, the anomalous fast diffusion of hydrogen along the pairing axis compared to the bulk rate, and the lack of long-range order between the pairs in metal matrix.Keywords
This publication has 13 references indexed in Scilit:
- Low-temperature localized motion of hydrogen and electronic structure transition in hexagonal-close-packed scandiumPhysical Review B, 1989
- Concentration and temperature dependence of hydrogen vibrations along thecaxis for hydrogen in yttrium: Evidence of dynamically coupled hydrogen pairsPhysical Review B, 1988
- Long-range and short-range ordering of hydrogen or deuterium atoms in solid solution in yttriumJournal of the Less Common Metals, 1987
- NMR search for evidence of hydrogen pairing in h.c.p. yttriumJournal of the Less Common Metals, 1987
- Hydrogen Pairing and Anisotropic Potential for Hydrogen Isotopes in YttriumPhysical Review Letters, 1986
- Experimental evidence of linear ordering of deuterium inα-Physical Review Letters, 1985
- Solid solutions of H and D in yttrium metalJournal of Physics F: Metal Physics, 1982
- Lattice location of deuterium in lutetiumPhysica Status Solidi (a), 1981
- Location of deuterium in-yttriumPhysical Review B, 1981
- Electrical resistivity of the α-phase lutetium-hydrogen at low temperatureSolid State Communications, 1976