Volume 36, Number 5, November II 1996
|Page(s)||373 - 378|
|Section||Condensed matter: structure, thermal and mechanical properties|
|Published online||01 September 2002|
Observation of an incommensurately modulated structure in dielectrics by an atomic-force microscope
J. Stefan Institute, Jamova 39, 1001 Ljubljana, Slovenia
2 Institut für Experimentalphysik der Universität Wien, Strudlhofgasse 4, A-1090 Wien, Austria
Accepted: 27 September 1996
We report the first direct observation of an incommensurate lattice distortion in dielectric crystals by an atomic-force microscope. The layered crystal has been imaged in the normal and incommensurate phases. In the normal phase, we observe well-ordered atomic corrugations on a cleavage surface of a crystal. In the incommensurate phase, these atomic corrugations are modulated by a long periodic plane-wave distortion.
PACS: 61.16.Ch – Scanning probe microscopy: scanning tunneling, atomic force, magnetic, etc. / 64.70.Rh – Commensurate-incommensurate transitions
© EDP Sciences, 1996
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