엑스선 흡수 분광법을 이용한 Sr2VO3FeAs 연구
- Title
- 엑스선 흡수 분광법을 이용한 Sr2VO3FeAs 연구
- Authors
- 박유미
- Date Issued
- 2011
- Publisher
- 포항공과대학교
- Abstract
- The new iron-based superconductor Sr2VO3FeAs and electron-doped compound Sr2VO3Mn0.25Fe0.75As and hole-doped compound Sr2VO3Co0.25Fe0.75As are studied by X-ray absorption spectroscopy. All three samples show Fe2+ state. The electronic structure of Fe ion is similar to the other iron-based superconductor and shows no change due to doping. The V+3 ion is dominant for all three materials but mixed valence of V is observed. Mn and Co in each doped samples show typical covalent bonding nature. The difference of spectra between scrapped surface and fractured surface gives the possibility of grainboundary impurities.
- URI
- http://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000000896599
https://oasis.postech.ac.kr/handle/2014.oak/1006
- Article Type
- Thesis
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.