| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1645274 | Materials Letters | 2013 | 4 Pages |
•Sr-doped LaCrO3 (La0.9Sr0.1CrO3 and La0.8Sr0.2CrO3) were synthesized as cube-shaped crystalline phases under mild hydrothermal conditions.•KOH and temperature play rather important roles in the formation of products.•The conductivities of samples increase with Sr doping content. The Neel temperatures of LaCrO3, La0.9Sr0.1CrO3 and La0.8Sr0.2CrO3 are 253, 260 and 252 K, respectively.
Sr-doped LaCrO3 (La0.9Sr0.1CrO3 and La0.8Sr0.2CrO3) were synthesized as cube-shaped crystalline phases under mild hydrothermal conditions. All the samples can be prepared in a single step by hydrothermal treatment at 260 °C. The crystalline products were characterized by means of powder X-ray diffraction, scanning electron microscope, inductively coupled plasma and EDS. The crystals adopt perovskite-like structure (space group Pnma) and have a narrow particle size distribution in the range of 1–2 μm. The content of the reactant KOH and reaction temperature play important roles in the formation of products. The temperature dependence of electrical conductivities of the samples, measured using a DC four-probe method, shows that the conductivities increase with Sr doping, and the behavior of each sample can be ascribed to the small polaron hopping conduction mechanism. All the compounds show an antiferromagnetic transition and relative lower Néel temperatures.
