The hcp to fcc transformation at the (0001) surface of cobalt has been observed by low energy electron diffraction. Well ordered phases were obtained on both sides of the transformations. Intensity-voltage spectra were compared to dynamical calculations. It has been determined that the temperature stable surface phase is pure hcp, like that of the bulk, and remains so upon heating until a temperature of similar 450 degree C when the surface completely transforms in a first-order manner. The high temperature stable surface phase has been determined to be pure fcc, like that of the bulk. This phase reverts to hcp in a more second-order like manner upon cooling to similar 400 degree C.
|Number of pages||4|
|Publication status||Published - 1977|
|Event||Proc of the Int Vac Congr, 7th, and the Int Conf on Solid Surf, 3rd, of the Int Union for Vac Sci, Tech and Appl - Vienna, Austria|
Duration: 12 Sept 1977 → 16 Sept 1977
|Conference||Proc of the Int Vac Congr, 7th, and the Int Conf on Solid Surf, 3rd, of the Int Union for Vac Sci, Tech and Appl|
|Period||12/09/77 → 16/09/77|
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