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Proton magnetic resonance studies of TiCuH

The TiCuH structure can be described as alternating layers of TiH 2 and Cu atoms and, thus, corresponds to a two-dimensional analog of metal hydrides with CaF 2- type structures. Measurements of the proton relaxation times for TiCuH yield an activation energy of 0.79 eV for hydrogen diffusion. This...

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Bibliographic Details
Published in:Solid state communications 1978-01, Vol.27 (5), p.501-505
Main Authors: Bowman, Robert C., Attalla, Albert, Maeland, Arnulf J.
Format: Article
Language:English
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Summary:The TiCuH structure can be described as alternating layers of TiH 2 and Cu atoms and, thus, corresponds to a two-dimensional analog of metal hydrides with CaF 2- type structures. Measurements of the proton relaxation times for TiCuH yield an activation energy of 0.79 eV for hydrogen diffusion. This result strongly suggests the H-atoms in TiCuH jump directly between the tetrahedral sites rather than through the vacant octahedral sites as proposed for H-atom jumps in f.c.c. TiH x. In addition, the Korringa constant and hydrogen diffusion rate for TiCuH are compared with similar parameters for TiH x and several ternary titanium hydrides.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(78)90381-2