论文标题
晶格参数的非单调压力依赖性$ a $在Quasi One-dimunional Superpoductor pr $ _2 $ ba $ _4 $ _4 $ cu $ _7 $ o $ o $ $ _ {15-Δ} $
Nonmonotonic Pressure Dependence of the Lattice Parameter $a$ in the Quasi-one-dimensional Superconductor Pr$_2$Ba$_4$Cu$_7$O$_{15-δ}$
论文作者
论文摘要
在准一维超导体中,pr $ _2 $ ba $ _4 $ cu $ _7 $ _7 $ o $ $ _ {15-Δ} $,我们发现晶格参数增加了压力,$ a $ a a $ a a $ a a $ a a $ a n s suspertians s s surgawer s in 2.0 gpa开始,大约300 k。 GPA。为了讨论尺寸,我们还测量了最高14 t的磁场下的电阻,因为当系统从一维变为二维时,磁性抗性会诱导。
In the quasi-one-dimensional superconductor, Pr$_2$Ba$_4$Cu$_7$O$_{15-δ}$, we found that the lattice parameter, $a$ increased against pressure, starting at 2.0 GPa at approximately 300 K. This result suggests that the two-dimensional inter-conducting-chain interaction along the $a$ axis is most enhanced at approximately 2.0 GPa. To discuss the dimensionality, we also measured the resistance under magnetic fields up to 14 T, because magneto-resistance is induced when a system changes from one-dimensional to two-dimensional.