Fig. 2: Temperature dependence of resistance for YBCO thin films.
From: Anisotropic superconductivity induced by periodic multiferroic domain patterns
a The temperature dependence transport behavior of the YBCO/BFO 109° case heterostructure (R/R300 denoted as the resistance normalized to the resistance measured to 300 K). The red curve represents the transport behavior measured perpendicular to domain walls, and the black curve was acquired parallel to the domain walls. The thickness of the YBCO layer and the BFO layer are 45 and 60 nm, respectively, in this heterostructure. b The temperature dependence transport behavior of the YBCO/BFO 71° heterostructure case. The red curve represents the transport behavior measured perpendicular to domain walls, and the black curve was acquired parallel to domain walls. The thickness of the YBCO layer and the BFO layer are 35 and 60 nm, respectively, in this heterostructure. The insets of a, b show the full measurement range from 300 to 2 K, and the black and red arrows represent the measured current direction as parallel and perpendicular geometry, respectively.
