Ex situ investigation of the step bunching on crystal surfaces by atomic force microscopy

Mariusz J. Krasinski

doi:10.1117/12.280711

14 July 1997 Ex situ investigation of the step bunching on crystal surfaces by atomic force microscopy

Mariusz J. Krasinski

Proceedings Volume 3178, Solid State Crystals: Growth and Characterization; (1997) https://doi.org/10.1117/12.280711
Event: XII Conference on Solid State Crystals: Materials Science and Applications, 1996, Zakopane, Poland

Abstract

We are describing ex situ observation of step bunching on the surfaces of solution grown potassium dihydrogen phosphate (KDP) and sodium chlorate monocrystals. The measurements have been done with the use of atomic force microscope. The use of this equipment allowed us to see directly the structure of macrosteps. Observation confirmed the existence of step pinning which is one of the proposed mechanisms of step bunching. Despite the very high resolution of AFM it was not possible to determine the nature of pinning point. The monatomic steps on KDP and sodium chlorate crystal surfaces are mainly one unit cell high what seems to be the result of the steps pairing. The origin of observed step pattern is discussed in frames of existing theories.

Citation Download Citation

Mariusz J. Krasinski "Ex situ investigation of the step bunching on crystal surfaces by atomic force microscopy", Proc. SPIE 3178, Solid State Crystals: Growth and Characterization, (14 July 1997); https://doi.org/10.1117/12.280711

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