Search of new physical properties in magnetic superconducting material with intrinsic magnetic Josephson junction

2012 Fiscal Year Final Research Report

• Project/Area Number: 22560015
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Applied materials science/Crystal engineering
• Research Institution: National Institute for Materials Science
• Principal Investigator: MOCHIKU Takashi 独立行政法人物質・材料研究機構, 超伝導物性ユニット, 主幹研究員 (20354293)
• Project Period (FY): 2010 – 2012
• Keywords: 超伝導体

Research Abstract

High-Tc superconductors have the crystal structure with the stacking of the superconducting CuO2 plane and the insulating plane. The FeSr2YCu2O6+? compound with the Fe-substituted insulating plane exhibits superconductivity and antiferromagnetic order, only after N2-annealing for preventing the disorder of Cu and Fe, and subsequent O2-annealing. While the FeO? insulating plane does not exhibit long-range antiferromagnetic order because of the substitution of 10% Cu, the oxygen atoms around Cu substituted on the FeO? insulating plane supply the carrier onto the superconducting CuO2 plane. The critical current density of the FeSr_ 2YCu_ 2O_ 6+χcompound is lower than that of other high-Tc superconductors due to the magnetic order of the FeO? insulating plane, and the inter-grain critical current density is much lower.

Research Products

• [Journal Article] Annealing effect on structure and superconductivity in FeSr2YCu2O6+? magnetic superconductor (2013)
  • Author(s): T. Mochiku, Y. Hata, K. Yamaguchi, Y. Tsuchiya, A. Hoshikawa, K. Iwase, D. Sulistyanintyas, T. Ishigaki, H. Yasuoka, K. Hirata
  • Journal Title: Physica Procedia
  • Peer Reviewed
• [Journal Article] Superconductivity of individual grains and inter-grain boundaries for polycrystalline FeSr_2YCu_2O6+χ (2013)
  • Author(s): K. Yamaguchi, Y. Hata, T. Mochiku, H. Yasuoka
  • Journal Title: Physica C Volume: 487巻 Pages: 56-59
  • Peer Reviewed
• [Journal Article] Low temperature structure of FeSr_2YCu_2O6+χ magnetic superconductor (2010)
  • Author(s): T. Mochiku, Y. Hata, T. Wuernisha, K. Iwase, A. Hoshikawa, D. Sulistyanintyas, T. Ishigaki, H. Yasuoka, K. Hirata
  • Journal Title: Physica C Volume: 470巻
  • Peer Reviewed
• [Journal Article] 中性子回折による酸化物高温超伝導体の結晶構造解析 (2010)
  • Author(s): 茂筑高士
  • Journal Title: RADIOISOTOPES Volume: 59巻 Pages: 211-219
  • Peer Reviewed
• [Presentation] FeSr_2YCu_2O6+χ磁性超伝導体における還元アニール効果 (2012)
  • Author(s): 茂筑高士, 畑慶明, 山口和宏, 土屋佳則,星川晃範, 岩瀬謙二, Dyah Sulistyanintyas, 石垣徹, 安岡宏, 平田和人
  • Organizer: 日本中性子科学会第12回年会
  • Place of Presentation: 京都大学吉田キャンパス(京都市)
  • Year and Date: 20121210-11
• [Presentation] Annealing effect on structure and superconductivity in FeSr_2YCu_2O6+χmagnetic superconductor (2012)
  • Author(s): T. Mochiku, Y. Hata, K. Yamaguchi, Y. Tsuchiya, A. Hoshikawa, K. Iwase, D. Sulistyanintyas, T. Ishigaki, H. Yasuoka, K. Hirata
  • Organizer: 25^<th> International Symposium on Superconductivity
  • Place of Presentation: タワーホール船堀(東京都江戸川区)
  • Year and Date: 20121203-05
• [Presentation] FeSr_2YCu_2O6+χにおけるアニール効果 (2012)
  • Author(s): 茂筑高士, 畑慶明, 山口和宏, 土屋佳則, 星川晃範, 岩瀬謙二, Dyah Sulistyanintyas, 石垣徹, 安岡宏, 平田和人
  • Organizer: 日本物理学会2012秋季大会
  • Place of Presentation: 横浜国立大学常盤台キャンパス(横浜市)
  • Year and Date: 20120918-21
• [Presentation] FeSr_2YCu_2O6+χにおける磁化と構造的な乱れ (2012)
  • Author(s): 茂筑高士, 畑慶明, 土屋佳則, 星川晃範, 岩瀬謙二, Dyah Sulistyanintyas, 小黒英俊, 石垣徹, 安岡宏, 平田和人
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学西宮上ケ原キャンパス(兵庫県西宮市)
  • Year and Date: 20120324-27
• [Presentation] "FeSr_2YCu_2O6+χ磁性超伝導体の規則・不規則構造 (2011)
  • Author(s): 茂筑高士, 畑慶明, 松下能孝, 勝矢良雄, 星川晃範, 岩瀬謙二, Dyah Sulistyanintyas, 小黒英俊, 石垣徹, 土屋佳則, 岩井秀夫, 安岡宏, 平田和人
  • Organizer: 日本物理学会第2011年秋季大会
  • Place of Presentation: 富山大学五福キャンパス(富山市)
  • Year and Date: 20110921-24
• [Presentation] FeSr_2YCu_2O6+χ系における欠損・超伝導・磁性 (2011)
  • Author(s): 茂筑高士, 畑慶明, 星川晃範, 岩瀬謙二, Dyah Sulistyanintyas, 小黒英俊, 石垣徹, 安岡宏, 平田和人
  • Organizer: 日本セラミックス協会第24回秋季シンポジウム
  • Place of Presentation: 北海道大学札幌キャンパス(札幌市)
  • Year and Date: 20110907-09
• [Presentation] FeSr_2YCu_2O6+χ系における構造的な乱れ (2010)
  • Author(s): 茂筑高士, 畑慶明, 星川晃範, 岩瀬謙二, Dyah Sulistyanintyas, 小黒英俊, 石垣徹, 安岡宏, 平田和人
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学中百舌鳥キャンパス(大阪府堺市)
  • Year and Date: 20100923-26