Preparation and Characterization of New Exotic Superconductors Having Porous Frameworks

具有多孔骨架的新型奇异超导体的制备和表征

• 批准号: 19105006
• 负责人: YAMANAKA Shoji
• 金额: $ 49.67万
• 依托单位: Hiroshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (S)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19105006/
• 关键词: 超伝導; 層状構造; カゴ状構造; 高圧合成; 核磁気共鳴; トンネル分光; 薄膜; 物性研究

New exotic superconductors with layered or cage-like structures have been developed, and characterized on their physical properties. The layer structured nitride TiNCl with a two-dimensional orthogonal network was intercalated with alkali metals as well as organic bases, which was changed into superconductors with T_<CS>=8.6-16.4K. The electron-doped β-HfNCl and β-ZrNCl with double honey-comb layered structures were swelled with organic solvent molecules, and the effect of swelling (co-intercalation) on superconductivity was studied by measuring magnetic susceptibility and NMR. New silicon clathrate superconductors have been prepared under high pressure and high-temperature conditions.

具有层状或笼状结构的新型超导体已被开发出来，并对其物理性质进行了表征。层状氮化物TiNCl二维正交网状结构与碱金属和有机碱插层，转变为T_&lt；CS&gt；=8.6-16.4K的超导体。用有机溶剂分子对具有双蜂窝状层状结构的电子掺杂β-HfNCl和β-ZrNCl2进行了溶胀，并通过磁化率和核磁共振研究了溶胀(共插层)对超导电性的影响。在高压高温条件下制备了新型包层硅超导体。

项目成果

Tunnel spectra of junctions involving BSCCO and other cuprates: superconducting and charge-density-wave gapping

涉及 BSCCO 和其他铜酸盐的结的隧道光谱：超导和电荷密度波隙

• 发表时间: 2008
• 期刊: Physica C 468
• 作者: T. Ekino;A.M. Gabovich;Mai Suan Li;M. Pekala;H. Szymczak;A.I. Voitenko
• 通讯作者: A.I. Voitenko

Analysis of the pseudogap-related structure in the tunnel spectra of superconducting Bi_<2>Sr_<2>CaCu_<2>O_<8+d> revealed by break-junction technique

断结技术揭示的超导Bi_<2>Sr_<2>CaCu_<2>O_<8d>隧道谱中赝能隙相关结构分析

• 发表时间: 2008
• 期刊: Low Temp. Phys. 34
• 作者: 内田尚志;梯祥郎;T. Ekino
• 通讯作者: T. Ekino

STM Observation on layered nitride superconductor KxTiNCl

层状氮化物超导体 KxTiNCl 的 STM 观察

• 发表时间: 2009
• 期刊: J. Phys. : Conf. Ser 150
• 作者: A. Sugimoto;K. Shohara;T. Ekino;S. Yamanaka
• 通讯作者: S. Yamanaka

NMR studies of layered Nitride superconductors

层状氮化物超导体的核磁共振研究

• 发表时间: 2007
• 期刊: International Journal of Modern Physics B (印刷中)
• 作者: Uematsu;M.;高橋 修;H.Tou
• 通讯作者: H.Tou

High pressure synthesis of ammonium tungsten bronze superconducting phases from a molecular solid acid H3PW12O40·nH2O (n ∼28) in BN crucibles

• DOI: 10.1016/j.jallcom.2008.03.116
• 发表时间: 2009-02
• 期刊: Journal of Alloys and Compounds
• 影响因子: 6.2
• 作者: Atsushi Anzai;K. Inumaru;S. Yamanaka