Morphology and Magnetic Properties of La1-xSrxMnO3 (0 <= x <= 0.25) Films on Quartz Substrates

作者：Zalita Z; Abdullah H^*; Zulfakar M S; Shaari S

来源：Sains Malaysiana, 2013, 42(8): 1145-1149.

• Manganite
• Pechini method
• rhombohedral

Samples of La1-xSrxMnO3 (LSMO) complex solution with 0 <= x <= 0.25 were prepared using the Pechini method. The LSMO solution was then deposited on a quartz substrate using the spin coating technique and annealed at 750 degrees C for an hour. The X-ray diffraction pattern for films with Sr matches with the R (3) over barc rhombohedral structure. The surface morphology of the film shows a different structure for a different x with more surface crack formation with Sr increment. The magnetic properties at room temperature showed hysteresis curves for all samples. La1-xSrxMnO3 thin film samples with x = 0.00, 0.05 and 0.10 showed weak ferromagnetic properties while films with x = 0.15, 0.20 and 0.25 are paramagnetic. The sample with x = 0.10 has the highest magnetization value at 12 kOe, which is 0.48 emu/g.

• 出版日期2013-8