The nitrogen-induced herringbone reconstruction of Cr(110)

M. Schmid, M. Pinczolits*, W. Hebenstreit, and P. Varga

Institut für Allgemeine Physik, Technische Universität Wien, A-1040 Wien, Austria
*Present address: Institut für Halbleiterphysik, Johannes-Kepler Universität Linz, A-4040 Linz, Austria

Surf. Sci. 389 (1997) L1140-L1146

Segregation of nitrogen causes herringbone-like (3 x n) surface reconstructions, which were studied by atomically resolved scanning tunneling microscopy (STM). The main building blocks of the reconstruction are domains of (√6 × √6)R±35° cells, separated by domain boundaries running in [-1 1 0] direction. Since the density of Cr atoms in the surface is reduced by the reconstruction, the driving force of the reconstruction is believed to be compressive stress caused by the incorporation of N atoms into the surface.

Corresponding author: M. Schmid (schmid< encoded email address >).

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Part of this work is on display in the IAP/TU Wien STM Gallery (see the reconstructions page).