Probing jump diffusion in crystalline solids with neutron spin-echo spectroscopy.
Neutron spin-echo spectroscopy has been applied to jump diffusion in a crystalline solid. Definite advantages of spin-echo spectroscopy over quasielastic neutron scattering are the direct visual discrimination of fast and slow diffusion processes and the high resolution in the time-energy domain. The potential of the method is demonstrated by way of Ni diffusion in the intermetallic alloy NiGa.
Kaisermayr
M
M
Institut für Materialphysik, Universitat Wien, Strudlhofgasse 4, A-1090 Wien, Austria.
Pappas
C
C
Sepiol
B
B
Vogl
G
G