K
Kazumi Igawa
Researcher at Nihon University
Publications - 17
Citations - 1639
Kazumi Igawa is an academic researcher from Nihon University. The author has contributed to research in topics: Superconductivity & Oxypnictide. The author has an hindex of 10, co-authored 17 publications receiving 1593 citations.
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Journal ArticleDOI
Superconductivity at 43 K in an iron-based layered compound LaO 1-x F x FeAs
TL;DR: It is reported that increasing the pressure causes a steep increase in the onset Tc of F-doped LaOFeAs, to a maximum of ∼43 K at ∼4 GPa, which is the highest Tc reported to date.
Journal ArticleDOI
Superconductivity under High Pressure in LaFeAsO
Hironari Okada,Kazumi Igawa,Hiroki Takahashi,Yoichi Kamihara,Masahiro Hirano,Hideo Hosono,Kazuyuki Matsubayashi,Yoshiya Uwatoko +7 more
TL;DR: In this paper, a pressure-induced superconductivity was found for oxypnictide compound LaFeAsO under high pressures up to 29 GPa, where the maximum value of T c is 21 K at ∼12 GPa.
Journal ArticleDOI
Superconductivity under high pressure in LaFeAsO
Hironari Okada,Kazumi Igawa,Hiroki Takahashi,Yoichi Kamihara,Masahiro Hirano,Hideo Hosono,Kazuyuki Matsubayashi,Yoshiya Uwatoko +7 more
TL;DR: In this article, the authors performed electrical resistivity measurements under high pressures up to 29 GPa for oxypnictide compound LaFeAsO and found a pressure-induced superconductivity in La FeAsO.
Journal ArticleDOI
Superconductivity at 43 K in an Iron‐Based Layered Compound LaO1‐xFxFeAs.
Journal ArticleDOI
Pressure-Induced Superconductivity in Iron Pnictide Compound SrFe2As2
Kazumi Igawa,Hironari Okada,Hiroki Takahashi,Satoru Matsuishi,Yoichi Kamihara,Masahiro Hirano,Hideo Hosono,Kazuyuki Matsubayashi,Yoshiya Uwatoko +8 more
TL;DR: In this article, the Frontier Research Center, Tokyo Institute of Technology, 4259 Nagatsuda, Midori-ku, Yokohama 226-8503 ERATO-SORT, JST, in Frontier Research Centre, Tokyo IIT, Tokyo University, Kashiwanoha Kashiwa, Chiba 277-8581