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1Author    T. SpringerRequires cookie*
 Title    High-Resolution Neutron Spectroscopy for the Investigation of Hydrogen Diffusion and Molecular Rotations in Solids  
 Abstract    An introductory survey on applications of high-resolution neutron spectroscopy is presented, dealing with the motion of hydrogen in solids, namely concerning (i) random rotational motions or stationary tunneling states of NH 4 -ions or CH 3 -groups, and (ii) diffusion of hydrogen in alloys. For the rotation of hydrogenous groups in solids, at higher temperatures rotational jumps can be found, whereas quantum states are observed by |J.eV-spectroscopy at temperatures below 50 K. On the other hand, hydrogen diffusion does not reveal pronounced evidence of quantum effects, except for hydrogen in a metal containing impurity atoms. 
  Reference    Z. Naturforsch. 48a, 406—414 (1993); received January 7 1992 
  Published    1993 
  Keywords    Quasielastic neutron scattering, Diffusion, Tunneling 
  Similar Items    Find
 TEI-XML for    default:Reihe_A/48/ZNA-1993-48a-0406.pdf 
 Identifier    ZNA-1993-48a-0406 
 Volume    48