Development of iron based materials with three dimensional network structures toward the realization of high Tc superconductivity
Project/Area Number |
15K17705
|
Research Category |
Grant-in-Aid for Young Scientists (B)
|
Allocation Type | Multi-year Fund |
Research Field |
Condensed matter physics II
|
Research Institution | Nagoya University |
Principal Investigator |
|
Project Period (FY) |
2015-04-01 – 2017-03-31
|
Project Status |
Completed (Fiscal Year 2016)
|
Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
|
Keywords | 鉄系超伝導 / 次元性 / 構造解析 / 112型 / 放射光X線 / 新構造 / 超伝導 / 鉄系 / 放射光X線 / 置換効果 |
Outline of Final Research Achievements |
We explored novel iron based superconductors with three dimensional network structures, which sharply differs from the precedented iron based superconductors with two dimensional network structures. The candidate materials Can(n+1)/2(Fe1-xPtx)(2+3n)Ptn(n-1)/2As(n+1)(n+2)/2 (n = 2, 3) did not show bulk superconductivity in the present works, however, n = 3 system exhibited the non-bulk superconductivity with Tc ~ 30 K. Our further experimental studies have clarified two unprecedented 112-type iron arsenides with the chemical composition of Ca1-xLaxFe-yPdyAs2, which are the isostructural materials with Ca1-xLaxFeAs2 with Tc = 34 K. From the comprehensive studies between the synchrotron X-ray diffraction and the XAFS experiments, we clarified that they are the parent materials with the potential toward the realization of high Tc superconductivity.
|
Report
(3 results)
Research Products
(10 results)
-
-
-
-
[Journal Article] Synchrotron X-ray diffraction study of 112-type Ca1-xLaxFeAs22015
Author(s)
Katayama, N; Sugawara, K; Nakano, A; Kitou, S; Sugiyama, Y; Kawaguchi, N; Ito, H; Higuchi, T; Fujii, T; Sawa, H
-
Journal Title
Physica C
Volume: 518
Pages: 10-13
DOI
Related Report
Peer Reviewed
-
[Journal Article] Absence of Jahn-Teller transition in the hexagonal Ba3CuSb2O9 single crystal2015
Author(s)
Naoyuki Katayama, Kenta Kimura, Yibo Han, Joji Nasu, Natalia Drichko, Yoshiki Nakanishi, Mario Halim,Yuki Ishiguro, Ryuta Satake, Eiji Nishibori, Masahito Yoshizawa, Takehito Nakano, Yasuo Nozue, Yusuke Wakabayashi, Sumio Ishihara, Masayuki Hagiwara, Hiroshi Sawa, and Satoru Nakatsuji
-
Journal Title
Proc. Natl. Acad. Sci. USA
Volume: 112
Issue: 30
Pages: 9305-9309
DOI
Related Report
Peer Reviewed / Int'l Joint Research
-
-
-
-
-