Abstract
We have performed scanning tunneling microscope/spectroscopy measurements on NdBa2Cu3O7-δ (Nd123) single crystals. Two characteristic structures, i.e., square lattice and one-dimensional atomic structures are observed on the naturally terminated layers. For a cleaved surface, nm size bright and dark regions consisting of a 4 × 4 Å2 square lattice are observed and the contrast is explained by the inhomogeneous distribution of oxygen vacancies on the surfaces.
Original language | English |
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Pages (from-to) | 527-530 |
Number of pages | 4 |
Journal | Physica C: Superconductivity and its applications |
Volume | 357-360 |
DOIs | |
Publication status | Published - 2001 Aug |
Externally published | Yes |
Keywords
- Atomic structure
- NdBaCuO single crystals
- Scanning tunneling microscopy
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering