About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPU-5: Chemical Ordering of Sputtered FePt / h-BN Granular Media Using RF Substrate Bias |
| Author(s) |
Cinthya Aros-Caballero |
| On-Site Speaker (Planned) |
Cinthya Aros-Caballero |
| Abstract Scope |
Hexagonal-BN (h-BN) / L1₀-FePt granular media has been proposed as an ideal candidate for next-generation heat-assisted magnetic recording media due to the potential for improved microstructural and magnetic performance. Previous studies have demonstrated that high temperatures and RF substrate bias promote crystalline h-BN at the FePt grain boundaries. However, the impact of substrate bias on the chemical ordering of FePt within this system has been underexplored. Here, FePt films were deposited on glass substrates using RF bias powers ranging from 3 W to 8 W to evaluate these effects. The data indicated that the L1₀ chemical ordering of the system decreased with increased substrate bias, accompanied by a reduction in out-of-plane coercivity from 32 kOe to 10 kOe for the 3 W and 8 W substrate bias samples, respectively. Energy dispersive spectroscopy further revealed a reduction in the Fe at% observed for samples with increased substrate bias. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Magnetic Materials, Characterization, |