日本物理学会
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作者:Soshi Iimura , Hideo Hosono
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2020, Vol.89 (5)
摘要:Iron-based superconductors have grown to be a new continent of high T c superconductors comparable to cuprates. The optimal critical temperature ( T c) of 56 K in electron-doped 1111-type iron oxypnictides attracts considerable attention of physicists a...
作者:Hideo Hosono
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2008, Vol.77 (Suppl.C), pp.1-8
摘要:On February 23, 2008, our paper reporting T c of 26 K in LaFeAsO1- x F x was published on line in the Journal of American Chemical Society. The present article describes our research flow to this discovery and summarizes research advances on Fe (...
作者:... Yoichi Kamihara , Masahiro Hirano , Hideo Hosono
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2009, Vol.78 (2)
摘要:75As-nuclear magnetic resonance (NMR) on an iron (Fe)-based superconductor LaFeAsO1- x F x ( x =0.14) was performed under a pressure of 3 GPa. Enhancement of the superconducting transition temperature ( T c) was confirmed from the rela...
作者:... Yoichi Kamihara , Masahiro Hirano , Hideo Hosono
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2008, Vol.77 (7)
摘要:We report experimental results of75As and139La nuclear magnetic resonance (NMR) in the iron-based layered LaFeAs(O1- x F x ) ( x = 0.0, 0.04, and 0.11). In the undoped LaFeAsO, 1/ T 1 of139La exhibits a distin...
作者:... Hiromichi Ohta , Atsushi Fujimori , Hideo Hosono
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2007, Vol.76 (10)
摘要:We have performed a temperature-dependent photoemission study of a Na x CoO2 ( x ∼0.8) epitaxial thin film prepared by the reactive solid-phase epitaxy method. The chemical potential shift as a function of temperature was derived from the Co 3 d peak sh...
作者:... Yoichi Kamihara , Masahiro Hirano , Hideo Hosono
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2008, Vol.77 (6)
摘要:We report high-resolution photoemission spectroscopy of newly-discovered iron-based layered superconductor La(O0.93F0.07)FeAs ( T c = 24 K). We found that the superconducting gap shows a marked deviation from the isotropic s -wave symmetry. T...
作者:Hideo Hosono , Satoshi Nakano
来源:[J].Journal of the Physical Society of Japan(IF 2.087), 2008, Vol.77 (Suppl.C), pp.119-120
摘要:We have performed electrical resistivity and powder X-ray diffraction measurements under high pressures for nickel-based superconducors LaNiXO (X = P and As). Superconducting transition temperatures T c of X = P and As increase to 3.78 K at 1.67 GPa and 3.14 K at 0.75 ...

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