Characterization of Sr2RuO4 Josephson junctions made of epitaxial films

Autor:	Uchida, Masaki, Sakuraba, Ikkei, Kawamura, Minoru, Ide, Motoharu, Takahashi, Kei S., Tokura, Yoshinori, Kawasaki, Masashi
Rok vydání:	2020
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Materials Science Condensed Matter - Strongly Correlated Electrons
Zdroj:	Phys. Rev. B 101, 035107 (2020)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.101.035107
Popis:	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. Comment: 14 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2001.01844 Zobrazit plný text záznamu View this record from Arxiv