Fabrication of Fe-based superconducting wires using effects ofstructural transformation and strain

利用结构转变和应变效应制造铁基超导线材

• 批准号: 23860042
• 负责人: MIZUGUCHI Yoshikazu
• 金额: $ 2.08万
• 依托单位: Tokyo Metropolitan University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23860042/
• 关键词: 超伝導; 超伝導線材; 新規超伝導物質; 鉄系超伝導; 鉄カルコゲナイド

We have developed novel fabrication process of FeSe superconducting wires using structural transformation of the wire core. The hexagonal FeSe1.2, starting wire core, was packed into the Fe sheath. By annealing at high temperature, the core and Fe sheath reacted and the transformation from hexagonal FeSe1.2 to tetragonal FeSe superconductor. This novel PIT method allowed us to obtain FeSe superconducting wires with high-density core. Furthermore, during this project, we have discovered new BiS2-based layered superconductor Bi4O4S3 and REOBiS2 systems. To date, 11 superconductors related to the BiS2-based superconductors have been discovered all over the world.

我们开发了利用线芯结构转变的 FeSe 超导线材的新型制造工艺。将六角形 FeSe1.2 作为起始线芯，填充到 Fe 护套中。通过高温退火，核与Fe鞘发生反应，由六方FeSe1.2转变为四方FeSe超导体。这种新颖的 PIT 方法使我们能够获得具有高密度芯的 FeSe 超导线材。此外，在这个项目中，我们还发现了新的基于 BiS2 的层状超导体 Bi4O4S3 和 REOBiS2 系统。迄今为止，世界各地已发现11种与BiS2基超导体相关的超导体。

项目成果

Physical properties of layered chalcogenide superconductors and related magnetic materials

层状硫族化物超导体及相关磁性材料的物理性质

• 发表时间: 2012
• 作者: Mitsuru Ohtake ; Shouhei Ouchi ;Fumiyoshi Kirino ; Masaaki Futamoto;Y. Mizuguchi
• 通讯作者: Y. Mizuguchi

Two-step phase transition in Fe_<1+d>Te detected by low-temperature x-ray diffraction

低温X射线衍射检测Fe_<1d>Te的两步相变

• 发表时间: 2012
• 期刊: Solid State Communication (accepted for publication)
• 作者: 竹下侑志;荒木宏之;三島悠一郎;Yoshikazu Mizuguchi
• 通讯作者: Yoshikazu Mizuguchi

構造相変態法によるFeSe超伝導テープの作製と特性評価

结构相变法制备FeSe超导带材及性能评价

• 发表时间: 2012
• 作者: Rei Yamagishi;Kiyotaka Obunai;Tadao Fukuta,Koichi Ozaki;井澤宏輝
• 通讯作者: 井澤宏輝

Evolution of two-step structural phase transition in Fe1+dTe detected by low-temperature x-ray diffraction

• DOI: 10.1016/j.ssc.2012.03.022
• 发表时间: 2012-02
• 期刊: Solid State Communications
• 影响因子: 2.1
• 作者: Y. Mizuguchi;K. Hamada;K. Goto;H. Takatsu;H. Kadowaki;O. Miura

Single crystal growth and structural characterization of FeTe1-xSx

FeTe1-xSx 的单晶生长和结构表征

• DOI: 10.1109/tasc.2010.2087307
• 发表时间: 2011
• 期刊: IEEE, Trans.Appl.Supercond.
• 作者: 山本真大,山岸鈴;小武内清貴,福田忠生,尾崎公一;Yoshikazu Mizuguchi
• 通讯作者: Yoshikazu Mizuguchi