Abstract
Low temperature sites for muons implanted in TiHx have been found to be a mixture of interstitial and substitutional sites, with substitutional occupancy determined by the probability that a muon in an interstitial site will have a vacant nearest neighbor substitutional site. As with ZrHx, activation from the interstitial site is observed below 300 K. From the depolarization rate in the substitutional site, the muon likely displaces the neighboring H atoms by about 0.1 A. Diffusion for the substitutional muons occurs above room temperature with an activation of about 0.38 eV, which is less than the 0.505 eV for hydrogen vacancy motion observed by NMR. To explain this the muon transition rate to a vacancy must be less than that of hydrogen.
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D. Richter, R. Hempelmann, O. Hartmann, E. Karlsson, L. O. Norlin, S. F. J. Cox and R. Kutner, J. Chem. Phys. 79 (1983) 4564.
M. Doyama, R. Nakai, R. Yamamoto, Y. J. Uemura, T. Yamazaki, Y. Fukai and T. Suzuki, Hyp. Int. 8 (1981) 711.
W. J. Kossler, M. Namkung, B. Hitti, Y. Li J. Kempton, C. E. Stronach, L. R. Goode Jr., W. F. Lankford, B. D. Patterson, W. Kundig and R. I. Grynszpan, Phys. Rev. B32 (1985) 293.
J. H. Van Vleck, Phys. Rev. 74 (1948) 1168.
A. Abragam,The Principles of Nuclear Magnetism (Clarendon Press, Oxford, 1961).
H. L. Yakel Jr., Acta Cryst. 11 (1958) 46.
C. Korn and D. Zamir, J. Phys. Chem. Solids 31 (1970) 489.
K. W. Kehr, R. Kutner and K. Binder, Phys Rev B23 (1981) 4931.
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Kossler, W.J., Schone, H.E., Petzinger, K. et al. Sites and diffusion for muons and hydrogen in titanium hydrides. Hyperfine Interact 31, 235–240 (1986). https://doi.org/10.1007/BF02401565
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DOI: https://doi.org/10.1007/BF02401565