A series of bulk ceramic samples of La1-xCaxMnO3 and Y1-xCaxMnO3 was prepared by the conventional solid state reaction method,and the samples of x=1/3 were inve
A series of bulk polycrystalline La1 - xLixMnO3 samples with x ranging from 0. 1 to 0. 5 was prepared by sol-gel method. X-ray diffraction patterns show that th