Room-temperature ferromagnetism in Sr_(1-x)Y_xCoO_(3-delta) (0.2 < x < 0.25)

W. Kobayashi, S. Ishiwata, I. Terasaki +4

We have measured magnetic susceptibility and resistivity of Sr${}_{1-x}$Y${}_x$CoO${}_{3-\delta }$ ($x=$ 0.1, 0.15, 0.2, 0.215, 0.225, 0.25, 0.3, and 0.4), and have found that Sr${}_{1-x}$Y${}_x$C…