论文标题
基于BIS2的超导体BI4O4S3中的非常规同位素对过渡温度的影响
Unconventional isotope effect on transition temperature in BiS2-based superconductor Bi4O4S3
论文作者
论文摘要
我们报告了基于BIS2的超导体BI4O4S3中硫同位素对过渡温度的影响。使用32s和34s同位素化学品制备BI4O4S3的多晶样品。从磁化分析中，同位素指数（AS）估计为-0.1 <as <0.1。尽管与磁化估计的TC相比，从电阻率估计的TC散射，但我们观察到TC与同位素质量之间没有明显的相关性。目前的结果表明，在BI4O4S3中，非常规围绕状态至关重要。
We report the sulfur isotope effect on transition temperature in a BiS2-based superconductor Bi4O4S3. Polycrystalline samples of Bi4O4S3 were prepared using 32S and 34S isotope chemicals. From magnetization analyses, the isotope exponent (aS) was estimated as -0.1 < aS < 0.1. Although the Tc estimated from electrical resistivity was scattered as compared to those estimated from the magnetization, we observed no clear correlation between Tc and the isotope mass. The present results suggest that unconventional paring states are essential in Bi4O4S3.
