论文标题

prir $ _ {2} $ zn $ _ {20} $的抗屈球顺序和超导性的同时崩溃。

Simultaneous collapse of antiferroquadrupolar order and superconductivity in PrIr$_{2}$Zn$_{20}$ by nonhydrostatic pressure

论文作者

Umeo, Kazunori, Takikawa, Riho, Onimaru, Takahiro, Adachi, Makoto, Matsumoto, Keisuke T., Takabatake, Toshiro

论文摘要

prir $ _ {2} $ zn $ _ {20} $中的超导能力出现在$ t _ {\ rm c} = 0.05 $ k的情况下,在抗fiferroquadrupolar订单以下$ t _ {\ rm q} = 0.11 $K。 Q} $和电阻率$ρ(t)$中的非FERMI液体行为通过使用两种压力传输介质:氩气维持高度静水压力和甘油,甘油可巩固高于5 GPA的非遗传压力的GPA。在使用$ p $的氩气最高为10.6 GPa后,$ t _ {\ rm c} $几乎不会更改,而$ t _ {\ rm q} $单调地从0.11增加到0.23 k。 GPA。对比结果表明,现场四极波动在该化合物中诱导超导性。

Superconductivity in PrIr$_{2}$Zn$_{20}$ appears at $T_{\rm c} = 0.05$ K in the presence of an antiferroquadrupolar order below $T_{\rm Q} = 0.11$ K. We have studied pressure dependences of $T_{\rm c}$, $T_{\rm Q}$, and non-Fermi liquid behaviors in the resistivity $ρ(T)$ by using two pressure transmitting media: argon maintaining highly hydrostatic pressure, and glycerol, which solidifies above 5 GPa producing nonhydrostatic pressure. Upon applying $P$ with argon up to 10.6 GPa, $T_{\rm c}$ hardly changes, while $T_{\rm Q}$ monotonically increases from 0.11 to 0.23 K. With glycerol, however, $T_{\rm Q}$ and $T_{\rm c}$ simultaneously fall below 0.04 K at 6.3 GPa. The contrasting results indicate that onsite quadrupolar fluctuations induce superconductivity in this compound.

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