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Trimeric Achromobacter cycloclastes Cu-containing nitrite reductase (CuNIR) proteins adsorbed on gold and graphite have been studied by ambient STM and in situ AFM. STM resolves them individually and in layers, distinguishing the sub-molecular individual units of the trimer. The Cu atoms are not visible to STM. STM shows that individual CuNIR denatures as it adsorbs on Au, although a deformed trimeric...
In this work, we show atomic STM images of the layered compound Bi 2 Se 3 . We study the effect in the surface of the substitution of 5% and 20% of the Bi atoms for Sb in Bi 1.9 Sb 0.1 Se 3 and Bi 1.6 Sb 0.4 Se 3 . The images of the three samples show similar trigonal structures corresponding probably...
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