Microwave assisted magnetic recording: Physics and application to hard disk drives

M Takagishi, N Narita, Y Nakagawa… - Journal of Magnetism …, 2022 - Elsevier
Microwave assisted magnetic recording (MAMR) is one of the key candidate technologies
for ten terabits class magnetic recording. In this article, we review MAMR technology and its …

Micromagnetic simulation of microwave-assisted magnetization switching and signal recording characteristics for exchange-coupled composite media with layer …

T Tanaka, K Kurihara, X Ya, X Bai, Y Kanai - Journal of Magnetism and …, 2023 - Elsevier
Microwave-assisted magnetic recording (MAMR) is a promising candidate for ultra-high-
density recording devices. In this study, microwave-assisted magnetization switching (MAS) …

Effective field analysis of segmented media for microwave-assisted magnetic recording

X Bai, JG Zhu - IEEE Magnetics Letters, 2017 - ieeexplore.ieee.org
In current perpendicular magnetic recording, a high-recording signal-to-noise ratio (SNR)
always accompanies wide track width, limiting the area density capability. To overcome this …

Optimization of soft layer uniaxial anisotropy gradient in media for microwave-assisted magnetic recording

SJ Greaves, R Itagaki, Y Kanai - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Exchange-coupled composite (ECC), notched, and graded anisotropy recording media were
optimized for microwave-assisted magnetic recording at head-medium spacings from 4.5 to …

Systematic evaluation of microwave-assisted magnetic recording

Z Liu, PW Huang, S Hernandez, G Ju… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
A micro-magnetic simulation model to evaluate microwave-assisted magnetic recording
(MAMR) has been developed. Optimization of the spin torque oscillator with ac field strength …

Verification and design of position matching effect in MAMR using dual-FGL STO

Y Nakagawa, M Takagishi, N Narita… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
We investigated the matching effect between a recording head with a spin-torque oscillator
(STO) and a recording medium in microwave-assisted magnetic recording (MAMR). We …

MAMR writability and signal-recording characteristics on granular exchange-coupled composite media

T Tanaka, K Kurihara, X Ya, Y Kanai, X Bai… - Journal of Magnetism …, 2021 - Elsevier
Exchange-coupled composite (ECC) media present a possible layered structure for
microwave-assisted magnetic recording (MAMR) systems. In this paper, MAMR writability …

Optimisation of microwave-assisted magnetic recording media for spin-torque oscillators with dual field generating layers

SJ Greaves, Y Kanai - IEEE Transactions on Magnetics, 2024 - ieeexplore.ieee.org
Exchange coupled composite (ECC) magnetic recording media were optimised for
microwave assisted magnetic recording (MAMR) using spin torque oscillators (STOs) with …

[HTML][HTML] Segmented media and medium damping in microwave assisted magnetic recording

X Bai, JG Zhu - AIP Advances, 2018 - pubs.aip.org
In this paper, we present a methodology of segmented media stack design for microwave
assisted magnetic recording. Through micro-magnetic modeling, it is demonstrated that an …

先进大容量存储技术

魏家琦, 柳洋, 赵巍胜 - 物理, 2021 - wuli.iphy.ac.cn
硬盘驱动器作为当前大容量数据存储的主要承载体, 是一种基于磁存储技术的电子设备.
随着物联网以及云计算的快速发展, 传统的硬盘驱动器已经无法满足日益增长的存储需求. 因此 …