CoSm‐based high‐coercivity thin films for longitudinal recording

1991 ◽  
Vol 69 (8) ◽  
pp. 5175-5177 ◽  
Author(s):  
E. M. T. Velu ◽  
D. N. Lambeth
Keyword(s):  
Thin Films ◽  
High Coercivity ◽  
Longitudinal Recording

Interdiffusion Induced High Coercivity of Rare-Earth Free Alnico Thin Films

2019 ◽  
Author(s):  
Xiao Han ◽  
Hoyun Won ◽  
Minyeong Choi ◽  
Liping Guo ◽  
Zhongqi Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
High Coercivity

Computer Analysis of Electron Diffraction From thin Films

1998 ◽  
Vol 4 (S2) ◽  
pp. 344-345
Author(s):  
Warren MoberlyChan ◽  
R. Kilaas ◽  
L-H. Chan ◽  
T. Nolan ◽  
P. Dorsey ◽  
...  
Keyword(s):  
Thin Films ◽  
Electron Diffraction ◽  
Computer Processing ◽  
Information Storage ◽  
Engineering Properties ◽  
Digital Recording ◽  
Longitudinal Recording ◽  
Diffraction Patterns ◽  
User Friendly ◽  
Co Alloys

As engineering properties are miniaturized by mo thinner films, crystallographic analyses become more appropriate by electron diffraction than XRD. Without synchrotron sources, XRD scans of such films often expose one peak at best. However, these thinner films become more suited for TEM, with less artifacts from sample preparation. XRD scans with peaks in the noise are quantitatively accepted, while vast differences in electron diffraction patterns remain unquantified. Digital recording of TEM information removes the uncertain hand waving of the darkroom; and fast, user-friendly computer processing especially removes the nonstatistical art in image analysis. This work inputs 16-bit (>65,000 gray levels) images of ring diffraction patterns into Digital Micrograph and utilizes a Rotation Average subroutine (1) to plot peak intensities.Information storage in a hard drive utilizes sputtered thin films of HCP-Co-alloys with magnetic bits tied to the crystallographic orientation of each grain. Longitudinal-recording density and signal-to-noise can be enhanced for thin films with c-axes of all grains in plane.

scholarly journals Interdiffusion induced high coercivity of rare-earth free Alnico/Pt thin films

2021 ◽  
Vol 854 ◽  
pp. 157038
Author(s):  
Xiao Han ◽  
Hoyun Won ◽  
Minyeong Choi ◽  
S.N. Vijayaraghavan ◽  
Zhongqi Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
High Coercivity

High coercivity and small grains of (Fe/sub 57/Pt/sub 43/)/sub 100-x/Cu/sub x/ ternary thin films

2002 ◽  
Vol 38 (5) ◽  
pp. 1961-1963 ◽  
Author(s):  
K.M. Park ◽  
K.H. Na ◽  
J.G. Na ◽  
P.W. Jang ◽  
H.J. Kim ◽  
...  
Keyword(s):  
Thin Films ◽  
High Coercivity ◽  
Small Grains

On the relationship of high coercivity and L10 ordered phase in CoPt and FePt thin films

1999 ◽  
Vol 86 (8) ◽  
pp. 4527-4533 ◽  
Author(s):  
R. A. Ristau ◽  
K. Barmak ◽  
L. H. Lewis ◽  
K. R. Coffey ◽  
J. K. Howard
Keyword(s):  
Thin Films ◽  
High Coercivity ◽  
Relationship Of ◽  
The Relationship ◽  
Fept Thin Films
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