论文标题
Weyl Semimetal $ \ text {wte} _2 $由$ \ text {pdte} $ superconductor诱导的约瑟夫森连接
Josephson junctions of Weyl semimetal $\text{WTe}_2$ induced by spontaneous nucleation of $\text{PdTe}$ superconductor
论文作者
论文摘要
我们报告使用Weyl和高阶拓扑半学$ \ text {wte} _2 $的Josephson交界设备的制造。我们表明，$ \ text {wte} _2 \ text {/pd} $在80°C的低温下退火没有表现出超导性属性，因为$ \ text {wte} _2 $ n n n n is n of of Superpoductors都不是地面状态的超导体。在180°C退火时，由于PD扩散，超导$ \ text {pdte} $的自发形成使我们能够获得$ \ text {wte} _2 $和适用于约瑟夫森连接的$ \ text {wte} _2 $。该结果是一种使约瑟夫森连接的便利技术，并将库珀对诱导到拓扑telluride半学中。
We report on the fabrication of Josephson junction devices with weak links utilizing the Weyl and higher-order topological semimetal $\text{WTe}_2$. We show that $\text{WTe}_2\text{/Pd}$ contact annealed at a low temperature of 80°C did not exhibit superconducting properties because neither $\text{WTe}_2$ nor Pd are superconductors in the ground state. Upon 180°C annealing, spontaneous formation of superconducting $\text{PdTe}$ due to Pd diffusion enabled us to obtain the interface between $\text{WTe}_2$ and superconductor suitable for the Josephson junction. This result is a facile technique to make a Josephson junction and induce Cooper pairs into topological telluride semimetals.
