THE STRUCTURAL AND MAGNETIC PROPERTIES OF La1-xCaxMnO3WITH x = 0.27 AND 0.47.

Y. E. Gunanto (Dept. of Math.Educ., Universitas Pelita Harapan, Karawaci, Tangerang 15811)
B. Kurniawan (Department of Physics, University of Indonesia, Kampus UI, Depok)
S. Poertadji (Department of Physics, University of Indonesia, Kampus UI, Depok)
A. A. Wisnu (Centre of Technology for Nuclear Industrial Materials (PTBIN)-BATAN, Kawasan Puspiptek, Serpong 15341, Tangerang Selatan)
A. Purwanto (Surya Institute, Gading Serpong, Tangerang 15811)
H. Tanaka (Department of Physics, Tokyo Institute of Technology, Tokyo, Japan 152-8551)
T. Ono (Department of Physics, Tokyo Institute of Technology, Tokyo, Japan 152-8551)

Jurnal Sains Materi Indonesia
Vol 13, No 3: JUNI 2012

THE STRUCTURAL AND MAGNETIC PROPERTIES OF La1-xCaxMnO3WITH x = 0.27 AND 0.47. We have studied the structural and magnetic properties for La1-xCaxMnO3 with x = 0.27 and 0.47 using neutron powder diffraction and magnetization measurements. At room and low temperature, all samples have the orthorhombic structure with space group Pnma. The sample x = 0.47 shows the antiferromagnetic mix a ferromagnetic with the magnetic moment and the Curie temperature are 1.30 μB and 260K, respectivelywhile the sample x = 0.27 is a ferromagnetic with the magnetic momentand the Curie temperature are 3.10 μB  and 197K, respectively.