Magnetism and Electronic Structure of Pd/Co/Pd/Al2O3 Trilayer Studied by X-ray Absorption Spectroscopy and Magnetic Circular Dichroism

• Main Authors: Chao-Hung Kao, 高肇鴻
• Other Authors: Way-Faung Pong
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/77927070346065237095

碩士 === 淡江大學 === 物理學系碩士班 === 102 === In Pd/Co/Pd trilayers, we report that the perpendicular magnetic anisotropy (PMA) can be induced by a modification of Pd-Co interface through the post-annealing. By means of magneto-optical Kerr effect, X-ray absorption near-edge structure, extended X-ray absorption fine structure, and X-ray magnetic circular dichroism, we demonstrate that the post-annealing could lead to formation of alloy-like Co structure above the preceding Pd-Co interface. Such interface structure could enhance the PMA owing to the characteristics of perpendicular crystalline anisotropy.