Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 80, Issue 9, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.80.093704
Keywords
Iron-based superconductors; Ca-Fe-Pt-As
Categories
Funding
- Japan Society for the Promotion of Science
- Ministry of Education, Culture, Sports, Science and Technology, Japan
- Japan Synchrotron Radiation Research Institute (JASRI) [2010A, B0083, 0084]
- Grants-in-Aid for Scientific Research [23740274, 23244074] Funding Source: KAKEN
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We report superconductivity in novel iron-based compounds Ca-10(PtnAs8)(Fe2-xPtxAs2)(5) with n = 3 and 4. Both compounds crystallize in triclinic structures (space group P (1) over bar), in which Fe2As2 layers alternate with PtnAs8 spacer layers. Superconductivity with a transition temperature of 38K is observed in the n = 4 compound with a Pt content of x similar or equal to 0: 36 in the Fe2As2 layers. The compound with n = 3 exhibits superconductivity at 13 K.
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