The effects of Al and Fe ion doping in Mn sites was studied for the colossal La 0.67 Ca 0.33
MnO 3 magnetoresistance material. It was found that when the Fe-doping amount x …

A series of bulk ceramic samples of La 1− x Ca x Mn0 3 and Y 1− x Ca x MnO 3 was
prepared by the conventional solid state reaction method, and the samples of x= 1/3 were …

The magnetotransport and magnetoresistive (MR) properties of manganese-based La 0.67
Ca 0.33 MnO 3 perovskite with different grain sizes are reported. The electrical resistivity …

In this paper we show the effect of Mn site substitution (<~ 1 0%) by Co and Cr on the
magnetotransport properties of ceramic samples of La 2/3 Ca 1/3 MnO 3. Resistivity …

Abstract Effects of oxygen deficiency on the magnetic and transport properties of La 2/3 Ba
1/3 MnO 3-δ polycrystalline perovskites have been investigated. As the nonstoichiometry …

The Sm substituting effects for La in La 0.67 Ca 0.33 MnO 3 have been studied
systematically. With increasing Sm doping amount, the metal-isolator phase transition …

The microstructure, magnetic and transport properties of the heterogeneous system with a
nominal composition (1/m) Ag 2 O-La 0.833 K 0.167 MnO 3 (1/m is molar ratio with m= 32 …

Colossal magnetoresistance (CMR) properties have been evidenced for the manganese
perovskites La0. 7− x Y x Ca0. 3MnO3− δ with 0.01≤ x≤ 0.20. This system is compared to …

The structure, magnetic, and transport properties of La 0.5 Ca 0.5 Mn 1− x M x O 3 (0⩽ x⩽
0.1) with M= Ge and Sn have been investigated systematically. A significant lattice …

We investigated the magnetotransport properties of polycrystalline La 0.45 Sr 0.55 Mn 1− x
Co x O 3 (0≤ x≤ 0.15)⁠. Ferromagnetism is enhanced with the doping of Co ions in La 0.45 …