title: Exploration of new superconductors and functional materials, and fabrication of superconducting tapes and wires of iron pnictides.
abstract: This review shows the highlights of a 4-year-long research project supported by the Japanese Government to explore new superconducting materials and relevant functional materials. The project found several tens of new superconductors by examining ∼1000 materials, each of which was chosen by Japanese experts with a background in solid state chemistry. This review summarizes the major achievements of the project in newly found superconducting materials, and the fabrication wires and tapes of iron-based superconductors; it incorporates a list of ∼700 unsuccessful materials examined for superconductivity in the project. In addition, described are new functional materials and functionalities discovered during the project.
authors.affiliation: Frontier Research Center, Tokyo Institute of Technology, Yokohama 226-8503, Japan; Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan; Materials Research Center for Element Strategy, Tokyo Institute of Technology, Yokohama 226-8503, Japan.
authors.forename: Hideo
authors.initials: H
authors.lastname: Hosono
authors.affiliation: Superconductivity Research Laboratory, International Superconductivity Technology Center (ISTEC), 2-11-19 Minowa-cho, Kohoku-ku, Yokohama, Kanagawa 223-0051, Japan.
authors.forename: Keiichi
authors.initials: K
authors.lastname: Tanabe
authors.affiliation: National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan.
authors.forename: Eiji
authors.initials: E
authors.lastname: Takayama-Muromachi
authors.affiliation: Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kageyama
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
authors.forename: Shoji
authors.initials: S
authors.lastname: Yamanaka
authors.affiliation: National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Kumakura
authors.affiliation: Department of Physics, Okayama University, Okayama 700-8530, Japan.
authors.forename: Minoru
authors.initials: M
authors.lastname: Nohara
authors.affiliation: Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan; Materials Research Center for Element Strategy, Tokyo Institute of Technology, Yokohama 226-8503, Japan.
authors.forename: Hidenori
authors.initials: H
authors.lastname: Hiramatsu
authors.affiliation: Materials Research Center for Element Strategy, Tokyo Institute of Technology, Yokohama 226-8503, Japan.
authors.forename: Satoru
authors.initials: S
authors.lastname: Fujitsu
keywords: functional material; iron pnictide; new superconductors; powder in tube; superconducting tape; superconducting wire; superconductivity