Figure 1: Scanning SQUID measurements of current in LAO/STO heterostructures. We first present images of sample H1, which is patterned so current flows in a bar with a width that is smaller than that ...
This is the tetragonal crystal structure of NaFe2As2, courtesy of Alexander Goncharov. Sodium (Na) is represented by the black balls, iron (Fe) by the red balls, and arsenic (As) by the yellow balls.