scholarly journals Optimisation of dual structure recording media for microwave-assisted magnetic recording

AIP Advances ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 125130
Author(s):  
Simon John Greaves ◽  
Yasushi Kanai
Keyword(s):  
Magnetic Recording ◽  
Recording Media ◽  
Dual Structure ◽  
Microwave Assisted

Theoretical Research on Microwave Assisted Magnetic Moment Reversal in Magnetic Recording Media

2012 ◽  
Vol 152-154 ◽  
pp. 162-166
Author(s):  
Shuang Mei Li
Keyword(s):  
Magnetic Recording ◽  
Magnetic Moment ◽  
Anisotropy Field ◽  
Theoretical Research ◽  
Recording Media ◽  
Magnetic Recording Media ◽  
Interacting Particles ◽  
Switching Field ◽  
Switching Speed ◽  
Microwave Assisted

The minimum switching field threshold and switching speed are key parameters for the magnetic recording in writing. This paper presents the dynamic precession of the moments of the grains based on LL equation.Under microwave-assisted reversal conditions, the influence of the differences between the angle of Anisotropy field on the magnetic moment reversal and loading speed of reversal magnetic field in two interacting particles is investigated.

Areal Density Capability of Dual-Structure Media for Microwave-Assisted Magnetic Recording

2019 ◽  
Vol 55 (12) ◽  
pp. 1-9 ◽  
Author(s):  
Simon John Greaves ◽  
Kheong Sann Chan ◽  
Yasushi Kanai
Keyword(s):  
Magnetic Recording ◽  
Areal Density ◽  
Dual Structure ◽  
Microwave Assisted

Microstructural characterization of CoPtCr/Cr thin film disks by cross-section TEM and elongated probe micro-diffraction

1991 ◽  
Vol 49 ◽  
pp. 762-763
Author(s):  
M.A. Parker ◽  
K.E. Johnson ◽  
C. Hwang ◽  
A. Bermea
Keyword(s):  
Magnetic Recording ◽  
Electron Probe ◽  
Microstructural Characterization ◽  
Crystallographic Structure ◽  
Recording Media ◽  
Layer By Layer ◽  
Cross Sectional ◽  
New Techniques ◽  
Polished Side

We have reported the dependence of the magnetic and recording properties of CoPtCr recording media on the thickness of the Cr underlayer. It was inferred from XRD data that grain-to-grain epitaxy of the Cr with the CoPtCr was responsible for the interaction observed between these layers. However, no cross-sectional TEM (XTEM) work was performed to confirm this inference. In this paper, we report the application of new techniques for preparing XTEM specimens from actual magnetic recording disks, and for layer-by-layer micro-diffraction with an electron probe elongated parallel to the surface of the deposited structure which elucidate the effect of the crystallographic structure of the Cr on that of the CoPtCr.XTEM specimens were prepared from magnetic recording disks by modifying a technique used to prepare semiconductor specimens. After 3mm disks were prepared per the standard XTEM procedure, these disks were then lapped using a tripod polishing device. A grid with a single 1mmx2mm hole was then glued with M-bond 610 to the polished side of the disk.

A multi-functional testing instrument for heat assisted magnetic recording media

2014 ◽  
Vol 115 (17) ◽  
pp. 17B726 ◽  
Author(s):  
H. Z. Yang ◽  
Y. J. Chen ◽  
S. H. Leong ◽  
C. W. An ◽  
K. D. Ye ◽  
...  
Keyword(s):  
Magnetic Recording ◽  
Recording Media ◽  
Functional Testing ◽  
Magnetic Recording Media ◽  
Testing Instrument ◽  
Heat Assisted Magnetic Recording
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