Tm. Schaub et al., SURFACE-STRUCTURE OF A BINARY ALLOY IN DIFFERENT STATES OF ORDER - THE TRANSFORMATION BETWEEN THE AMORPHOUS AND THE CRYSTALLINE PHASE, Europhysics letters, 36(8), 1996, pp. 601-606
Amorphous Pd81Si19 is studied by scanning tunneling microscopy before
and after crystallization, and after additional laser-quenching. Dista
nces between structural units on the amorphous surface are comparable
to lattice spacings on the crystallized sample indicating partial pres
ervation of the local structure during the phase transformation. After
laser-quenching the crystallized sample, the surface structure is sim
ilar to that of the initial amorphous state proving on the nm scale th
e successful transformation of the surface layers back into the amorph
ous state.