X-Ray Photoelectron Spectroscopy of (La0.7Sr0.3)MnO3Thin Films Prepared by Pulsed Laser Deposition
(La0.7Sr0.3)MnO3 (LSMO) thin films were grown on Si (100) substrate by using pulsed laser deposition (PLD) process. Both structure and surface morphology of the films were investigated by X-ray diffraction (XRD) and atomic force microscopy (AFM). Furthermore, the chemical states and chemical composition of the films were determined by X-ray photoelectron spectroscopy (XPS) near the surface. From XRD, the results indicate that the films grown on Si (100) substrates have a single pseudocubic perovskite phase structure with a high (100) orientation. The XPS results show that La, Sr and Mn exist mainly in the forms of perovskite structure and a SrO layer was found on outermost surface. The films resistivity emeasured under room temperature is 6.4´10-4 W×cm.
Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu
H. F. Xiong et al., "X-Ray Photoelectron Spectroscopy of (La0.7Sr0.3)MnO3Thin Films Prepared by Pulsed Laser Deposition", Advanced Materials Research, Vols. 284-286, pp. 2191-2197, 2011