Effect of chemical doping on heterostructured Fe-based superconductor Sr2VO3FeAs
Creators
- 1. Dept. of Physics, Pohang University of Science and Technology, Pohang (Korea, Republic of)
Description
Phase diagrams of electron- and hole-doped Sr2VO3FeAs are investigated using Co and Mn substitution at Fe site. Metallic nature survives only for Co (electron) doping, not for Mn (hole) doping. The conductivity of Sr2VO3(Fe,M)As (M=Mn,Co) is sensitive to the structural modification of FeAs microstructure rather than carrier doping. This finding implies that the FeAs layer plays a dominant role on the charge conduction, thus the SrVO3 layers should be considered as an insulating block. Also, we found that the superconductivity is rapidly suppressed by both dopants. This result is different from the conventional behavior that superconductivity is induced by doping in the most of Fe pnictides. Our finding strongly supports the uniqueness of Sr2VO3FeAs among the Fe pnictide superconductors
Additional details
Publishing Information
- Journal Title
- Progress in Superconductivity and Cryogenics
- Journal Volume
- 20
- Journal Issue
- 1
- Series
- 16 refs, 5 figs
- Journal Page Range
- p. 28-31
- ISSN
- 1229-3008
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 49079339
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- MICROSTRUCTURE; MODIFICATIONS; PHASE DIAGRAMS; PNICTIDES; SENSITIVITY; STRONTIUM OXIDES; SUPERCONDUCTIVITY
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; DIAGRAMS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; INFORMATION; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; STRONTIUM COMPOUNDS