论文标题
tetragonality诱导抗Thcr $ _2 $ si $ _2 $ -Type $ re_2 $ o $ $ _2 $ bi（$ re $ =稀土）带有Bi Square Net
Tetragonality induced superconductivity in anti-ThCr$_2$Si$_2$-type $RE_2$O$_2$Bi ($RE$ = rare earth) with Bi square net
论文作者
论文摘要
我们报告了一系列分层超导体，抗THCR $ _2 $ si $ _2 $ -Type $ re_2 $ o $ $ _2 $ _2 $ bi（$ re $ =稀土），由电导性BI Square Nets和电磁绝缘$ RE_2 $ o $ o $ _2 $ layers组成。通过分离过量的氧气掺入，将超导性诱导，无论在$ re_2 $ o $ _2 $层中是否存在磁性排序。有趣的是，所有$ re_2 $ o $ $ _2 $ bi的过渡温度包括非磁性y $ _2 $ o $ _2 $ bi bi大约由单位细胞四方（$ c $/$ a $）缩放，这意味着bi Square网络的相对分离的关键作用以诱导超导电性。
We report a series of layered superconductors, anti-ThCr$_2$Si$_2$-type $RE_2$O$_2$Bi ($RE$ = rare earth), composed of electrically conductive Bi square nets and magnetic insulating $RE_2$O$_2$ layers. The superconductivity was induced by separating Bi square nets as a result of excess oxygen incorporation, irrespective of the presence of magnetic ordering in $RE_2$O$_2$ layers. Intriguingly, the transition temperature of all $RE_2$O$_2$Bi including nonmagnetic Y$_2$O$_2$Bi was approximately scaled by the unit cell tetragonality ($c$/$a$), implying a key role of relative separation of the Bi square nets to induce the superconductivity.
