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Studies on the EPR g factors for the oxygenated and nonoxygenated BaCuO2+x.
- Source :
-
Physica C . Feb2015, Vol. 509, p5-7. 3p. - Publication Year :
- 2015
-
Abstract
- The EPR g factors for the oxygenated and nonoxygenated BaCuO 2+ x are theoretically studied from the perturbation formulas of the g factors for an orthorhombically elongated octahedral 3d 9 complex based on the cluster approach. The relative axial elongation ratios (≈1% and 0.6%) along c axis and the relative planar bond length variations (≈6.9% and 8.9%) are found for the oxygenated and nonoxygenated systems, respectively. The above local orthorhombic distortions of the Jahn–Teller nature around Cu 2+ can suitably account for the axial and perpendicular anisotropies of the observed g factors. The present studies can be useful to understand the influences of this parasitic phase BaCuO 2+ x on the EPR behaviours and superconductivity of the R 123 high T c superconductors. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09214534
- Volume :
- 509
- Database :
- Academic Search Index
- Journal :
- Physica C
- Publication Type :
- Academic Journal
- Accession number :
- 100654328
- Full Text :
- https://doi.org/10.1016/j.physc.2014.11.007