Experimental study of lubricant depletion induced by pulsed laser irradiation heating in heat-assisted magnetic recording

2018 ◽  
Vol 26 (1) ◽  
pp. 5-10
Author(s):  
Norio Tagawa ◽  
Hiroshi Tani ◽  
Yuki Uesaraie ◽  
Shinji Koganezawa ◽  
Renguo Lu
Keyword(s):  
Experimental Study ◽  
Laser Irradiation ◽  
Magnetic Recording ◽  
Pulsed Laser ◽  
Heat Assisted Magnetic Recording ◽  
Lubricant Depletion ◽  
Pulsed Laser Irradiation

Study of Lubricant Depletion Induced by Pulsed-Laser Irradiation Heating in Heat-Assisted Magnetic Recording

2018 ◽  
Author(s):  
Norio Tagawa ◽  
Hiroshi Tani ◽  
Yuki Uesaraie ◽  
Shinji Koganezawa ◽  
Renguo Lu
Keyword(s):  
Laser Irradiation ◽  
Laser Heating ◽  
Pulsed Laser ◽  
Duty Ratio ◽  
Full Width ◽  
Half Maximum ◽  
Continuous Laser ◽  
Lubricant Depletion ◽  
Pulsed Laser Heating ◽  
Pulsed Laser Irradiation

In this study, we experimentally investigated the lubricant depletion caused by pulsed-laser irradiation heating and discussed the fundamental characteristics, comparing it with the results obtained by continuous laser heating. As a result, it was found that the decrease in the lubricant depletion due to pulsed-laser heating was smaller than that to continuous laser heating and depended on an increase in the duty ratio as it increased. In addition, the lubricant depletion depends on the full width at half maximum (FWHM) of the temperature distribution due to pulsed-laser irradiation heating and increased as the FWHM increased. Therefore, it is also suggested that the lubricant depletion issue will not be so critical in actual HAMR systems because the FWHM would be very small.

Experimental Study of Lubricant Depletion in Heat Assisted Magnetic Recording

2012 ◽  
Vol 48 (5) ◽  
pp. 1813-1818 ◽  
Author(s):  
Y. S. Ma ◽  
X. Y. Chen ◽  
J. M. Zhao ◽  
S. K. Yu ◽  
B. Liu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Magnetic Recording ◽  
Heat Assisted Magnetic Recording ◽  
Lubricant Depletion

Modification of structural and transport properties in epitaxial YBa2CU3Ox films by pulsed laser irradiation

1993 ◽  
Vol 3 (12) ◽  
pp. 2173-2188
Author(s):  
N. G. Chechenin ◽  
A. V. Chernysh ◽  
V. V. Korneev ◽  
E. V. Monakhov ◽  
B. V. Seleznev
Keyword(s):  
Transport Properties ◽  
Laser Irradiation ◽  
Pulsed Laser ◽  
Pulsed Laser Irradiation

PULSED LASER IRRADIATION OF NICKEL THIN FILMS ON SILICON

1983 ◽  
Vol 44 (C5) ◽  
pp. C5-449-C5-454 ◽  
Author(s):  
P. Baeri ◽  
M. G. Grimaldi ◽  
E. Rimini ◽  
G. Celotti
Keyword(s):  
Thin Films ◽  
Laser Irradiation ◽  
Pulsed Laser ◽  
Nickel Thin Films ◽  
Pulsed Laser Irradiation

FUNDAMENTALS OF PULSED LASER IRRADIATION OF SILICON

1983 ◽  
Vol 44 (C5) ◽  
pp. C5-23-C5-36 ◽  
Author(s):  
H. Kurz ◽  
L. A. Lompré ◽  
J. M. Liu
Keyword(s):  
Laser Irradiation ◽  
Pulsed Laser ◽  
Pulsed Laser Irradiation
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