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Effects of stoichiometry and substitution in quasi-one-dimensional iron chalcogenideBaFe2S3
- Source :
- Physical Review B. 92
- Publication Year :
- 2015
- Publisher :
- American Physical Society (APS), 2015.
-
Abstract
- The effects of off-stoichiometry and elemental substitution on electronic properties of iron-based ladder compound ${\mathrm{BaFe}}_{2}{\mathrm{S}}_{3}$ are investigated. Resistivity and magnetization are revealed to be quite sensitive to the stoichiometry of Fe atoms, and 10% deficiency at Fe sites reduces the antiferromagnetic transition temperature by 40 K. The antiferromagnetic transition temperature decreases even faster and collapses to zero with hole doping through 10% K substitution at the Ba site, while the antiferromagnetic ordering phase remains with electron doping through 20% Co substitution at the Fe site. Such electron-hole asymmetry is opposite to two-dimensional iron-based superconductors, and can be explained on the basis of both itinerant and localized electronic pictures.
- Subjects :
- Superconductivity
Magnetization
Crystallography
Materials science
Electrical resistivity and conductivity
Phase (matter)
Transition temperature
Doping
Antiferromagnetism
Condensed Matter::Strongly Correlated Electrons
Condensed Matter Physics
Stoichiometry
Electronic, Optical and Magnetic Materials
Subjects
Details
- ISSN :
- 1550235X and 10980121
- Volume :
- 92
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi...........6f129b865975ea5c2711640640d141e9