| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Outline of Final Research Achievements |
Iron-based superconductivity has attracted a lot of interest due to a possibly novel pairing mechanism. To elucidate the mechanism of the iron-based superconductivity, we performed research on systems with a separate spatial dimensionality. Magnetic structures of AFe2X3 (A = K, Rb, Cs, Ba; X = S, Se, Te) have been determined through representation analysis to neutron powder diffraction data. We successfully induced first superconducting state in BaFe2S3 by applying hydrostatic pressures. In addition, we succeeded in observing characteristic to low-dimensional systems such as magnetic fluctuations over a wide temperature regime and magnetic excitations, and finding that the dilution in (Ba,Cs)Fe2Se3 can completely suppress the magnetic ordering.
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