Bias sputtering of granular L10-FePt films with hexagonal boron nitride grain boundaries

C Xu, BSDCS Varaprasad, DE Laughlin, JG Zhu - Scientific Reports, 2023 - nature.com
In this paper, we present an experimental study of L10-FePt granular films with crystalline
boron nitride (BN) grain boundary materials for heat assisted magnetic recording (HAMR). It …

[HTML][HTML] Understanding the growth of high-aspect-ratio grains in granular L1-FePt thin-film magnetic media

C Xu, B Zhou, T Du, BSD Varaprasad, DE Laughlin… - APL Materials, 2022 - pubs.aip.org
A systematic investigation has been performed to optimize the microstructure of L1 0-FePt–
SiO x granular thin films as recording media for heat-assisted magnetic recording. The FePt …

Magnetic properties and microstructure of FePt (BN, X, C)(X= Ag, Re) films

JL Tsai, CY Sun, JH Lin, YY Huang, HT Tsai - Nanomaterials, 2023 - mdpi.com
A sputtered FePt (BN, Re, C) film, here boron nitride (BN), was compared to a reference
sample FePt (BN, Ag, C). Intrinsically, these films illustrate a high anisotropy field (Hk) and …

Fabrication of 16nm-thick granular L10 FePt-hBN thin film media

C Xu, BSDCS Varaprasad… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Hexagonal boron nitride (BN) has recently been investigated as a promising grain boundary
material (GBM) for the nanogranular structure of L10-FePt-based heat-assisted magnetic …

[HTML][HTML] FePt–BN granular HAMR media with high grain aspect ratio and high L1 ordering on corning LotusTM NXT glass

BSD Varaprasad, C Xu, MH Huang, DE Laughlin… - AIP Advances, 2023 - pubs.aip.org
Fabricating highly ordered tall L1 0–FePt with a small grain pitch distance on a commercially
available glass substrate is crucial to realize heat-assisted magnetic recording (HAMR) …

Grain density control in FePt granular films for heat-assisted magnetic recording media

I Suzuki, YK Takahashi - Japanese journal of applied physics, 2022 - iopscience.iop.org
To realize high areal density, hard disk drives larger than 4 Tbit in− 2, ultrafine FePt grains of
less than 5 nm and grain density larger than 24 T in− 2 are required. Although there have …

Thermal Conductance Analysis of the [FePt/h-BN/FePt] Interface

C Xu, E Zhang, BY Yang… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
Heat-assisted magnetic recording (HAMR) requires a high thermal gradient in the recording
media to suppress jitter noises. The FePt-(h-BN) granular film has been proposed as a …

Atomic bonding and electrical characteristics of two-dimensional graphene/boron nitride van der Waals heterostructures with manufacturing defects via binding energy …

J Wang, L Ge, A Deng, H Qiu, H Li, Y Zhu, M Bo - Chemical Physics Letters, 2022 - Elsevier
We used the binding energy and bond-charge model to study the atomic bonding and
electrical properties of the two-dimensional graphene/BN van der Waals heterostructure. We …

Magnetic and thermodynamic behaviors of an L10 structure nanoisland: a Monte Carlo study

L Chen, J Cai, W Zhang - Journal of Magnetism and Magnetic Materials, 2022 - Elsevier
Abstract Using the Monte Carlo simulation, research has been implemented on the magnetic
and thermodynamic behaviors of a ferromagnetic mixed-spin (3/2, 1/2) L 1 0 nanoisland with …

Influences of the substrate strain on microstructures of L10 FePt-X thin films by using phase field simulation

Y Ren, L Liu, L Liang, Q Zheng, Y Xu, L Zhang… - Materials Today …, 2022 - Elsevier
The microstructure evolution of the FePt-X (segregant) thin films is studied by employing a
two-dimensional phase field model based on the elastic effect. Simulated results show that …