Percolative phase separation induced by nonuniformly distributed excess oxygens

Ilryong Kim, Joonghoe Dho, Soonchil Lee

The zero-field ${}^{139}$La and ${}^{55}$Mn nuclear magnetic resonances were studied in $\mathrm{L}{\mathrm{a}}_{0.8}\mathrm{C}{\mathrm{a}}_{0.2}\mathrm{Mn}{\mathrm{O}}_{3+\delta }$ with different oxygen stoichiometry $\delta$. The signal intensity, p…