Exchange bias associated with phase separation in the perovskite cobaltiteLa1−xSrxCoO3

We report the observation of exchange bias phenomena in the hole-doped perovskite cobaltites ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{CoO}}_{3}$ ($x=0.12$, 0.15, 0.18, and 0.30) in which a spontaneous phase separation occurs. When the ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Sr}}_... View More