TY - JOUR
T1 - Effect of N2 additive gas during sputtering on magnetic properties and microstructure of CoB/Pd multilayered media
AU - Asahi, Toru
AU - Tanaka, Mutsumi
AU - Sayama, Junichi
AU - Kawaji, Jun
AU - Matsunuma, Satoshi
AU - Osaka, Tetsuya
N1 - Funding Information:
This work was carried out at the “Center for Practical Nano-Chemistry” in the 21C-COE Programme, the Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT), and was financially supported by grants-in-aid of the Special Coordination Funds for Promoting Science and Technology, “Creation of Novel Magnetic Recording Materials Using Nano-Interface Technology” and the Center of Excellence Research on “Establishment of Molecular Nano-Engineering by Utilizing Nanostructure Arrays and Its Development into Micro-Systems” from MEXT, and the Storage Research Consortium (SRC), Japan.
PY - 2005/2
Y1 - 2005/2
N2 - Effects of N2 additive gas and/or substrate heating during the sputtering of [CoB/Pd]20 multilayered films on the magnetic properties and microstructure were investigated. The [CoB/Pd]20 film fabricated at 20 °C by adding N2 gas during sputtering possessed the finest grain size and the smallest magnetic cluster size among media fabricated in this study although the film sputter-deposited at 260 °C by adding N2 gas exhibited the weakest intergranular exchange coupling. It was revealed that the double-layered perpendicular magnetic recording medium that consisted of the [CoB/Pd]20 film fabricated at 20 °C by adding N2 gas exhibited the highest signal-to-noise ratio in the read-write characteristics.
AB - Effects of N2 additive gas and/or substrate heating during the sputtering of [CoB/Pd]20 multilayered films on the magnetic properties and microstructure were investigated. The [CoB/Pd]20 film fabricated at 20 °C by adding N2 gas during sputtering possessed the finest grain size and the smallest magnetic cluster size among media fabricated in this study although the film sputter-deposited at 260 °C by adding N2 gas exhibited the weakest intergranular exchange coupling. It was revealed that the double-layered perpendicular magnetic recording medium that consisted of the [CoB/Pd]20 film fabricated at 20 °C by adding N2 gas exhibited the highest signal-to-noise ratio in the read-write characteristics.
KW - Additive N gas
KW - CoB/Pd multilayered film
KW - Perpendicular magnetic recording medium
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U2 - 10.1016/j.jmmm.2004.10.032
DO - 10.1016/j.jmmm.2004.10.032
M3 - Article
AN - SCOPUS:12344269868
SN - 0304-8853
VL - 287
SP - 199
EP - 203
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - SPEC. ISS.
ER -