article · Journal of Physics Conference Series · 2009
Role of underlayer for segregated structure formation of CoCrPt-SiO<sub>2</sub>granular thin film
Y. Hirayama, I. Tamai, I. Takekuma, Ryoichi Nakatani
Cited by 12Open access
Abstract
We have investigated the role of the Ru underlayer for the segregated structure formation of CoCrPt-SiO2 granular thin film to improve the recording performance of CoCrPt-SiO2 perpendicular magnetic recording media. The coercivity of the granular film decreases with decreasing Ru layer thickness, which comes from the change in the segregated structure. Formation of an oxide grain boundary is needed to obtain higher coercivity. According to a morphology analysis, the Ru layer roughness is closely related to the coercivity. The results indicate that the oxide grain boundary formation of the granular layer is enhanced by the roughness of the Ru underlayer. The shapes of the Ru grains probably serve as a template in CoCrPt grain growth and oxide grain boundary formation. As one of the methods for enhancing the roughness of the Ru underlayer, an island shape growth on the low surface energy materials is applicable. The roughness of the Ru layer was increased using a Pd/MgO/Pd seed layer and high coercivity was successfully obtained even when the Ru layer thickness was 3 nm.
Cite this paper
Hirayama, Y., Tamai, I., Takekuma, I., & Nakatani, R. (2009). Role of underlayer for segregated structure formation of CoCrPt-SiO<sub>2</sub>granular thin film. Journal of Physics Conference Series, 165, 012033. https://doi.org/10.1088/1742-6596/165/1/012033
Hirayama, Y., et al. “Role of underlayer for segregated structure formation of CoCrPt-SiO<sub>2</sub>granular thin film.” Journal of Physics Conference Series, vol. 165, 2009, p. 012033, https://doi.org/10.1088/1742-6596/165/1/012033.
Hirayama, Y., I. Tamai, I. Takekuma, and Ryoichi Nakatani. 2009. “Role of underlayer for segregated structure formation of CoCrPt-SiO<sub>2</sub>granular thin film.” Journal of Physics Conference Series 165: 012033. https://doi.org/10.1088/1742-6596/165/1/012033.
Hirayama, Y. et al. (2009) ‘Role of underlayer for segregated structure formation of CoCrPt-SiO<sub>2</sub>granular thin film’, Journal of Physics Conference Series, 165, p. 012033. Available at: https://doi.org/10.1088/1742-6596/165/1/012033.
@article{hirayama2009role,
title = {{Role of underlayer for segregated structure formation of CoCrPt-SiO<sub>2</sub>granular thin film}},
author = {Hirayama, Y. and Tamai, I. and Takekuma, I. and Nakatani, Ryoichi},
journal = {Journal of Physics Conference Series},
volume = {165},
pages = {012033},
year = {2009},
doi = {10.1088/1742-6596/165/1/012033}
}Made from the index record. Check names, capitalisation and page numbers against the paper. Need another style? AI for Research has over 10,000.