Autor: |
Havill, R.L., Titman, J.M., Cowlam, N. |
Zdroj: |
Journal of the Less Common Metals; August 1991, Vol. 172 Issue: 1 p770-775, 6p |
Abstrakt: |
Measurements of the muon spin rotation in an NiTi glassy metal-hydrogen system are reported. The muon depolarization rate is found to be due to the coupling of the muon spins and hydrogen nuclear moments. Motional narrowing occurs above about 150 K and takes place in two stages. It is suggested that the depolarization rate can best be described if it is assumed that the motion of the muon is faster than that of the hydrogen in the first stage of the narrowing. In the second stage the increase of temperature causes the hydrogen diffusion rate to overtake that of the muon and the fluctuation of the dipole fields at the muon is due principally to the motion of the hydrogens. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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