Back to Search
Start Over
The loss of anisotropy in MgB2 with Sc substitution and its relationship with the critical temperature
- Publication Year :
- 2005
- Publisher :
- arXiv, 2005.
-
Abstract
- The electrical conductivity anisotropy of the sigma-bands is calculated for the (Mg,Sc)B2 system using a virtual crystal model. Our results reveal that anisotropy drops with relatively little scandium content (< 30%); this behaviour coincides with the lowering of Tc and the reduction of the Kohn anomaly. This anisotropy loss is also found in the Al and C doped systems. In this work it is argued that the anisotropy, or 2D character, of the sigma-bands is an important parameter for the understanding of the high Tc found in MgB2.
- Subjects :
- Superconductivity
Work (thermodynamics)
Materials science
Condensed matter physics
Condensed Matter - Superconductivity
Doping
chemistry.chemical_element
FOS: Physical sciences
Condensed Matter Physics
Superconductivity (cond-mat.supr-con)
chemistry
Electrical resistivity and conductivity
Crystal model
General Materials Science
Scandium
Anisotropy
Kohn anomaly
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....324d3208adc54226c9c52895d85350c9
- Full Text :
- https://doi.org/10.48550/arxiv.cond-mat/0504495