Journal article
A microprobe for the Cu(1) site in Y 1Ba 2Cu 3O 7−δ: Emission Mössbauer studies using carrier-free cobalt-57
Solid state communications, v 68(2), pp 181-184
1988
Abstract
Carrier-free cobalt-57 serves as a good microprobe for Cu(1) sites in contrast to macroscopicallt substituted iron-57 used for absorption Mössbauer spectroscopy. In the oxygenated superconductor, the dominant species observed is the square planar Cu(1), while in the deoxygenated phase, the species representing Cu(1) site with two axial oxyanions is the dominant one. There is evidence of internal magnetic field at room temperature in the deoxygenated phase. The probe clearly shows the presence of two different phases, an oxygen rich and the other, the deficient one. The nucleus probes the delocalized s-electron density in the conduction band, and the magnitude of isomer shifts give indication of the degree of metallicity.
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Details
- Title
- A microprobe for the Cu(1) site in Y 1Ba 2Cu 3O 7−δ: Emission Mössbauer studies using carrier-free cobalt-57
- Creators
- Amar Nath - Drexel UniversitySandor Nagy - Drexel UniversityMichel W. Barsoum - Drexel UniversityYen Wei - Drexel UniversitySom D. Tyagi - Drexel University
- Publication Details
- Solid state communications, v 68(2), pp 181-184
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics; Materials Science and Engineering
- Web of Science ID
- WOS:A1988Q628000003
- Scopus ID
- 2-s2.0-45449125937
- Other Identifier
- 991019173428204721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Physics, Condensed Matter