论文标题
SR2RUO4约瑟夫森连接的表征由外延膜制成
Characterization of Sr2RuO4 Josephson junctions made of epitaxial films
论文作者
论文摘要
我们已经研究了弱链接SR2RUO4/SR2RUO4 JOSEPHSON交界处的基本特性，该连接是通过通过激光微观图案对超导SR2RUO4膜进行狭窄的狭窄收缩而制造的。与先前报道的散装SR2RUO4/s波超导体连接点相比，该连接处显示出典型的过度阻尼行为，其临界电流密度要高得多。观察到的约瑟夫森临界电流的磁场和温度依赖性表明，手性P波不太可能用于超导对称性，鼓励对SR2RUO4/SR2RUO4型连接的进一步理论计算。
We have studied fundamental properties of weak-link Sr2RuO4/Sr2RuO4 Josephson junctions fabricated by making a narrow constriction on superconducting Sr2RuO4 films through laser micro-patterning. The junctions show a typical overdamped behavior with much higher critical current density, compared with those previously reported for bulk Sr2RuO4/s-wave superconductor junctions. Observed magnetic field and temperature dependences of the Josephson critical current suggest that the chiral p-wave is unlikely for the superconducting symmetry, encouraging further theoretical calculations of the Sr2RuO4/Sr2RuO4 type junctions.
