Superconducting transition of Ru in SQUIDs with Nb/Ru/Sr2RuO4 junctions

Y. Nago, R. Ishiguro, T. Sakurai, M. Yakabe, T. Nakamura, S. Yonezawa, S. Kashiwaya, H. Takayanagi, Y. Maeno

研究成果: Conference article査読

4 被引用数 (Scopus)

抄録

We have measured transport properties and magnetic responses of direct current superconducting quantum interference devices(dc-SQUIDs) with Nb/Ru/Sr2RuO4 junctions on The same Ru inclusion of a Sr2RuO4-Ru eutectic crystal. We observed a superconducting transition of The Ru at 0.50 K and another transition with anomalous interference patterns of The SQUID at 0.40 K. The second transition led to change of The SQUID structure due to energy competition of alternative supercurrent paths. Phase shifts of The peak of The Fraunhofer diffraction pattern were observed below The transition temperatures, implying topological effects due to a chiral p-wave state or its competition with a s-wave state.

本文言語English
論文番号022031
ジャーナルJournal of Physics: Conference Series
568
DOI
出版ステータスPublished - 2014
イベント27th International Conference on Low Temperature Physics, LT 2014 - Buenos Aires, Argentina
継続期間: 2014 8 62014 8 13

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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