Ferromagnetic-like behavior of BiLaFeO-KBr nanocomposites.

We studied magnetostatic response of the BiLaFeO- KBr composites (BLFO-KBr) consisting of nanosized (≈100 nm) ferrite BiLaFeO (BLFO) conjugated with fine grinded ionic conducting KBr. When the fraction of KBr is rather small (less than 15 wt%) the magnetic response of the composite is very weak and similar to that observed for the BLFO (pure KBr matrix without BiLaFeO has no magnetic response as anticipated). However, when the fraction of KBr increases above 15%, the magnetic response of the composite changes substantially and the field dependence of magnetization reveals ferromagnetic-like hysteresis loop with a remanent magnetization about 0.