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Surface structures of YBa 2 Cu 3 O 7‐x , BiCa 1·7 Sr 0·7 Cu 2 O x and TlCaBaCuO 4·5±x investigated by scanning tunnelling microscopy
Author(s) -
Laiho R.,
Aarnio M.,
Heikkilä L.,
Snellman H.,
Kirschner I.,
Halász I.
Publication year - 1988
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1988.tb01402.x
Subject(s) - superconductivity , crystallography , high temperature superconductivity , scanning tunneling microscope , materials science , condensed matter physics , mineralogy , analytical chemistry (journal) , chemistry , physics , nanotechnology , chromatography
SUMMARY Surface structures of the high‐T c superconductors YBa 2 Cu 3 O 7‐ x , BiCa 1·7 Sr 0·7 Cu 2 O x and TlCaBaCuO 4·5±x have been investigated with scanning tunnelling microscopy. The observed features include well‐organized stripe corrugations in Y‐Ba‐Cu‐O as well as orientated flake‐like structures and steps with various heights in the Bi‐ and Tl‐compounds. These observations suggest strong local variations of the elastic and electronic properties of the investigated materials.