Microstructure and Magnetic Properties of Ag/Fe/Ag Pseudo-Sandwich Nanogranular Films
Nanogranular Ag/Fe/Ag films were prepared by magnetron sputtering from a silver and a iron target onto glass substrates at room temperature and subsequent in situ annealing. The structural and magnetic properties of films were investigated as a function of silver layer thickness and annealing temperature. X-ray diffraction (XRD) shows the Fe (110) peak is formed in all the samples. Vibrating sample magnetometer (VSM) measurements indicate that the magnetic moments lie well perpendicular to the film plane. Coercivity (Hc) reaches the maximum in the sample annealed at 500℃ for 30 min with 3 nm Ag layer. Scanning probe microscope (SPM) was used to scan surface morphology and magnetic domain structures. In as-deposited samples the average grain size and the average roughness is smaller than in the annealing. The grain size is larger and the contrast of domains boost up after annealing, but the domain size become smaller
Magnetron sputtering Granular film Coercivity
彭燕 胡彦英 李耀鹏 孙会元
河北师范大学物理科学与信息工程学院 中国 石家庄 050016
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）