DocumentCode :
1761468
Title :
Superconducting Properties and Phase Diagram of Indirectly Electron-Doped 
Epitaxial Films Grown by Pulsed
Author :
Hiramatsu, Hidenori ; Katase, T. ; Kamiya, Toshio ; Hosono, Hideo
Author_Institution :
Mater. & Struct. Lab., Tokyo Inst. of Technol., Yokohama, Japan
Volume :
23
Issue :
3
fYear :
2013
fDate :
41426
Firstpage :
7300405
Lastpage :
7300405
Abstract :
A nonequilibrium phase (Sr1-xLax)Fe2As2 was formed by epitaxial film-growth. The resulting films emerged superconductivity along with suppression of the resistivity anomaly, which is associated with magnetic and structural phase transitions. The maximum critical temperature was 20.8 K, which is almost the same as that of directly electron-doped Sr(Fe1-xCox)2As2. Its electronic phase diagram is much similar to that of Sr( Fe1-xCox)2As2, indicating that the difference in the electron doping sites does not influence the superconducting properties of 122-type SrFe2As2.
Keywords :
electrical resistivity; high-temperature superconductors; iron compounds; lanthanum compounds; magnetic transitions; phase diagrams; pulsed laser deposition; strontium compounds; superconducting epitaxial layers; superconducting transition temperature; (Sr1-xLax)Fe2As2; electron doping; electronic phase diagram; high-temperature superconductors; indirectly electron-doped epitaxial films; magnetic transitions; maximum critical temperature; pulsed laser deposition; resistivity anomaly; structural phase transitions; superconducting properties; superconductivity; Doping; Epitaxial growth; Iron; Substrates; Superconducting epitaxial layers; Superconductivity; Doping; laser ablation; superconducting materials; superconducting thin films;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2012.2234935
Filename :
6387278
Link To Document :
