Superconductivity in noncentrosymmetric Mg10Ir19B16
Superconductivity in noncentrosymmetric Mg10Ir19B16
复制标题
DOI：
10.1103/physrevb.74.220502
复制
发表时间：
2006-12-01
影响因子：
3.7
通讯作者：
Cava, R. J.
中科院分区：
文献类型：
--
作者：
Klimczuk, T.;Xu, Q.;Cava, R. J.
Mg10Ir19B16 是 Mg-Ir-B 化学体系中以前未报道的化合物，被发现在接近 5 K 的温度下具有超导性。事实上，该化合物表现出 4 至 5 K 之间的超导温度范围，这表明一定范围的化学计量是允许的，尽管没有观察到这方面的结构证据。该化合物具有大型、非中心对称、体心立方晶胞，a=10.568 A，显示出以前没有报道过的超导体的结构类型。
Mg10Ir19B16, a previously unreported compound in the Mg-Ir-B chemical system, is found to be superconducting at temperatures near 5 K. The fact that the compound exhibits a range of superconducting temperatures between 4 and 5 K suggests that a range of stoichiometries is allowed, though no structural evidence for this is observed. The compound has a large, noncentrosymmetric, body centered cubic unit cell with a=10.568 A, displaying a structure type for which no previous superconductors have been reported.