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 …

Micromagnetism

L Exl, D Suess, T Schrefl - Handbook of Magnetism and Magnetic …, 2020 - Springer
Computational micromagnetics is widely used for the design and development of magnetic
devices. The theoretical background of these simulations is the continuum theory of …

Micromagnetic model analysis of spin-transfer torque oscillator and write heads for microwave-assisted magnetic recording

Y Kanai, K Yoshida, S Greaves… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
A micromagnetic model analysis was used to investigate spin-transfer torque oscillators
(STOs) and magnetic write heads for microwave-assisted magnetic recording (MAMR). Our …

Medium stack optimization for microwave-assisted magnetic recording

X Bai, JG Zhu - IEEE Transactions on Magnetics, 2017 - ieeexplore.ieee.org
In this paper, we present systematic micromagnetic modeling investigation on recording
process of segmented thin-film media with circularly polarized magnetic field at microwave …

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) …

The dynamics of microwave-assisted magnetic recording

S Greaves, T Katayama, Y Kanai… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
Models of microwave-assisted magnetic recording are used to investigate the potential of
the technology. With both single-and double-layer [exchange coupled composite (ECC)] …

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 …

Magnetic nanomaterials for data storage

JW Liao, HW Zhang, CH Lai - … : Fundamentals, Synthesis and …, 2017 - Wiley Online Library
This chapter discusses nanostructured magnetic thin films for data storage, including
overview of perpendicular recording media and FePt media for heat‐assisted magnetic …

Micromagnetics of microwave-assisted switching in Co-Pt-based nanostructures: switching time minimization

C Thanos, I Panagiotopoulos - Magnetism, 2023 - mdpi.com
Microwave-assisted switching (MAS) is simulated for different CoPt and CoPt/Co3Pt
nanosrtuctures as a function of applied DC field and microwave frequency. In all the cases …

Areal density prediction for microwave-assisted magnetic recording

KK Teo, KS Chan, SJ Greaves… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
In this paper, we perform an estimate of the areal density achievable for microwave-assisted
magnetic recording (MAMR) using micromagnetic simulations (μ-mag), the grain-flipping …