Surface Preparation Laboratory
Rosbayerweg 163
1521 RW Wormerveer
The Netherlands
 +31-75 612 0501
 +31-75 612 0491
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When a metal crystal is delivered and introduced into UHV, it carries with it a few manolayers of water and hydrocarbons that are adsorbed from ambient. Since carbon is bulk soluble in most metals to some degree, it is normally wise to initiate the preparation of a metal crystal by prolonged sputtering, i.e. several monolayer equivalents, followed by a stepwise, but gentle ramping up of the anneal temperature to prevent the carbon layer from diffusing into the bulk during annealing.