Back to Search
Start Over
Direct observation of the influence of the As-Fe-As angle on theTcof superconducting SmFeAsO1−xFx
- Source :
- Physical Review B. 84
- Publication Year :
- 2011
- Publisher :
- American Physical Society (APS), 2011.
-
Abstract
- The electrical resistivity, crystalline structure, and electronic properties calculated from the experimentally measured atomic positions of the compound SmFeAsO${}_{0.81}$F${}_{0.19}$ have been studied up to pressures \ensuremath{\sim}20 GPa. The correlation between the pressure dependence of the superconducting transition temperature (${T}_{c}$) and crystallographic parameters on the same sample shows clearly that a regular FeAs${}_{4}$ tetrahedron maximizes ${T}_{c}$ through optimization of carrier transfer to the FeAs planes as indicated by the evolution of the electronic band structures.
- Subjects :
- Superconductivity
Materials science
Condensed matter physics
Direct observation
Electronic band
02 engineering and technology
Crystal structure
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Electronic, Optical and Magnetic Materials
Condensed Matter::Materials Science
Electrical resistivity and conductivity
0103 physical sciences
Tetrahedron
010306 general physics
0210 nano-technology
Pnictogen
Electronic properties
Subjects
Details
- ISSN :
- 1550235X and 10980121
- Volume :
- 84
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi...........9a00712c8240a03ba94b4ebbaf4e6a7e