Spin freezing phenomenon and transport properties in La1/3Nd1/3Ba1/3MnO3

Abstract The magnetic and transport properties of La 1/3 Nd 1/3 Ba 1/3 MnO 3 with the colossal magnetoresistant (CMR) effect were studied by using SQUID. The irreversible curve for magnetizing intensity vs. temperature in an applied magnetic field of 13 Oe indicates that the spins of electrons are frozen, and therefore spin-glass state is probably formed below the Curie temperature. This fact implied that La 1/3 Nd 1/3 Ba 1/3 MnO 3 is mictomagnetic, that is, ferromagnetism and antiferromagnetism co-exist in this kind of material.