TY - GEN
T1 - Characterization of electrodeposited Co-Pt nanodot array at initial deposition stage
AU - Wodarz, Siggi
AU - Otani, Tomohiro
AU - Hagiwara, Hiroki
AU - Homma, Takayuki
N1 - Publisher Copyright:
© The Electrochemical Society.
PY - 2014
Y1 - 2014
N2 - We have fabricated Co-Pt nanodot arrays by electrochemical process for the application of bit patterned media (BPM), which is proposed as a key technology for future recording media. Since formation of uniform nanodot arrays is required for BPM, controlling the initial stages of electrodeposition is significant. In this work, we analyzed the effects of applied potential and size of nano-patterns on initial stages of Co-Pt electrodeposition. As a result, number of Co-Pt nuclei decreased in smaller nano-pore. In particular, formation of Co-Pt single grains, which exhibit high and uniform coercivity, was expected with low overpotential in nanopore with 10 nm diameter. Furthermore, coercivities of Co-Pt films at the initial stage increased with lower overpotential, since Co-Pt nucleated and grew along with Ru underlayer with high orientation. These results indicate that magnetic properties of Co-Pt nanodot arrays can be optimized by controlling the nucleation and growth behavior of Co-Pt.
AB - We have fabricated Co-Pt nanodot arrays by electrochemical process for the application of bit patterned media (BPM), which is proposed as a key technology for future recording media. Since formation of uniform nanodot arrays is required for BPM, controlling the initial stages of electrodeposition is significant. In this work, we analyzed the effects of applied potential and size of nano-patterns on initial stages of Co-Pt electrodeposition. As a result, number of Co-Pt nuclei decreased in smaller nano-pore. In particular, formation of Co-Pt single grains, which exhibit high and uniform coercivity, was expected with low overpotential in nanopore with 10 nm diameter. Furthermore, coercivities of Co-Pt films at the initial stage increased with lower overpotential, since Co-Pt nucleated and grew along with Ru underlayer with high orientation. These results indicate that magnetic properties of Co-Pt nanodot arrays can be optimized by controlling the nucleation and growth behavior of Co-Pt.
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U2 - 10.1149/06445.0099ecst
DO - 10.1149/06445.0099ecst
M3 - Conference contribution
AN - SCOPUS:84930268033
T3 - ECS Transactions
SP - 99
EP - 105
BT - Student Poster Session (General) - 226th ECS Meeting
A2 - Subramanian, V. R.
A2 - Johnson, C. S.
A2 - Lara-Castro, R. H.
A2 - Sundaram, K. B.
A2 - Chaitanya, V.
A2 - Pharkya, P.
PB - Electrochemical Society Inc.
T2 - Symposium on Student Poster General Session - 2014 ECS and SMEQ Joint International Meeting
Y2 - 5 October 2014 through 9 October 2014
ER -