论文标题
增强COSI2/TISI2杂界的两组分超导率
Enhanced two-component superconductivity in CoSi2/TiSi2 heterojunctions
论文作者
论文摘要
我们报告了（cosi2/si）/tisi2超导体/正常金属（S/N）杂点的增强的两组分超导性。发现了增强的超导过渡温度，大约是COSI2的两倍，而上临界场的两倍，大约是外延cosi2/si膜大的20倍。三端S/N连接的隧道光谱显示出明显的零偏置电导峰（ZBCP），这表明奇数频率，旋转三曲线和偶数库珀对在TISI2中的渗透来自TISI2中的TISI2中的三胞胎主导对2/si中的三胞胎占主导地位，cosi2/si由Simmetry降低的cosi2/si Interface simmetry降低。如果Tisi2的扩散更加扩散，则发现超导过渡温度的增强和ZBCP都更为明显。
We report enhanced two-component superconductivity in (CoSi2/Si)/TiSi2 superconductor/normal-metal (S/N) heterojunctions. An enhanced superconducting transition temperature about twice that of CoSi2 and an upper critical field about 20 times bigger than that of epitaxial CoSi2/Si films were found. The tunneling spectra of three-terminal S/N junctions show pronounced zero-bias conductance peaks (ZBCPs) that signify penetration of odd-frequency, spin-triplet and even-parity Cooper pairs in TiSi2 from triplet dominant pairing in CoSi2/Si driven by symmetry reduction at the CoSi2/Si interface. Both the enhancement of the superconducting transition temperature and the ZBCPs are found to be more pronounced if TiSi2 is made more diffusive.
