Hydrogen spectroscopy of - alloys on scales
Research Institute for Solid State Physics and Optics of Hungarian Academy
of Sciences P.O. Box 49, Budapest, H-1525, Hungary
Accepted: 30 October 2000
Simultaneous realisation of hydrogen charging or discharging process and in situ measurements of different NMR characteristic quantities give outstanding chances for the investigation and understanding of local physical properties of and hydrogen diffusion in disordered metal-hydrogen systems, including both equilibrium and non-equilibrium states. A few selected preliminary experimental results are presented in this letter for -H alloy on in situ hydrogen concentration, proton NMR line-shift and magnetic susceptibility, NMR spectrum, spin-spin relaxation time and hydrogen diffusion activation energy and correlation time measurements. The motional averaged spectrum is asymmetric and the possible decompositions relate to the non-single-site residence of hydrogen in this alloy.
PACS: 76.60.-k – Nuclear magnetic resonance and relaxation / 75.20.-g – Diamagnetism and paramagnetism / 66.30.-h – Diffusion in solids
© EDP Sciences, 2001