Binnig & Rohrer: Paper 7 (Surface Science):Having achieved more confidence they sent off their most substantial
paper yet to Surface Science (in February 1984, co-authored with
Gerber and Stoll (who is Stoll?)). The purpose was to clarify the reconstruction
of another gold surface, (100). Previously they had examined (110). The
STM revealed a uniformly contracted and slightly rotated hexagonal top
layer on top of the (100) surface. This time they compared the results
with those from LEED and Auger electron spectroscopy. Their experimental
set-up ensured that all methods could be applied consecutively without
displacing the sample. (Exactly how?) They also did helium scattering
(but probably needed to displace the sample?). They paid particular attention
to the tip now, sharpening it between each picture using high electric
fields. They worked in a vacuum (1.3 x 10(-8) Pa). They prepared the sample
carefully by N sputtering it and annealing it at 650 degrees Celsius.
Measurements were done at 50-100 degrees Celsius to keep down thermal
drifts. (How was the reaction in the surface science community?)
This page was last updated on 15 May 2001 by Arne Hessenbruch. |
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