Zobrazeno 1 - 10
of 57
pro vyhledávání: '"S. H. Gee"'
Autor:
Michael J. Donahue, Yang-Ki Hong, S. H. Gee, Byoung-Chul Choi, Seok Bae, Gavin S. Abo, Jihoon Park, M. H. Park, Jaejin Lee, Jeevan Jalli
Publikováno v:
IEEE Transactions on Magnetics. 48:1851-1855
The scaling effect of permalloy s-shaped element, a rectangular element with appendages, on operating fields, Hx and Hy, was investigated by micromagnetic computer simulations for and or or logic. The optimized combination of operating fields (Hx, Hy
Autor:
Amitava Moitra, Yang-Ki Hong, Steve Erwin, Jaejin Lee, Jeevan Jalli, Seok Bae, Gavin S. Abo, Jung-Chul Sur, S. H. Gee, Seong-Gon Kim
Publikováno v:
IEEE Transactions on Magnetics. 45:3590-3593
We report 24-30 nm spherical barium ferrite (S-BaFe) particles having extremely narrow size distribution without any superparamagnetic phase. We have converted spherical magnetite (S-Mag) nanoparticles to S-BaFe nanoparticles using a unique adsorptio
Autor:
Gavin S. Abo, Yang-Ki Hong, Seok Bae, Jeevan Jalli, Byoung-Chul Choi, A. Lyle, Gregory W. Donohoe, M. H. Park, S. H. Gee
Publikováno v:
IEEE Transactions on Magnetics. 45:2367-2370
We investigated spin-polarized current switching of elongated Pac-man (EPM) elements in a Pac-man shaped spin valve (Co/Cu/Py). The aspect ratio, pulse duration, and effect of antiferromagnetic (AFM) layer were simulated to obtain coherent switching.
Autor:
Jaejin Lee, Hwachol Lee, S. H. Gee, Sung-Ik Lee, Jeevan Jalli, Andrew Lyle, Jung-Chul Sur, Seok Bae, Gavin S. Abo, Yang-Ki Hong, Tim Mewes
Publikováno v:
IEEE Transactions on Magnetics. 44:2978-2981
Samarium (Sm) doped M-type strontium ferrite single crystals have been successfully grown from melts using a flux system of SrCO3 and Na2CO3. The crystals exhibited the typical hexagonal ferrite growth habit with a plate-like geometry, and the larges
Autor:
Zhaowei Zhong, S. H. Gee
Publikováno v:
Materials and Manufacturing Processes. 20:851-861
It has become of paramount importance to be able to perform failure analysis of defects on hard disk surfaces quickly and accurately. In this study, ultrasonic pitting defects on hard disk surfaces were investigated. A new electrical tagging pattern
Autor:
Z. W. Zhong, S. H. Gee
Publikováno v:
Surface Engineering. 21:41-46
A carbon void on a hard disk surface is a defect that occurs during the carbon sputter deposition process for the manufacture of hard disks. Because the carbon overcoat on hard disk surfaces acts as a barrier to corrosion, it is essential to reduce t
Publikováno v:
Journal of Magnetism and Magnetic Materials. 286:83-87
A domain wall structure of a strongly coupled ferromagnetic bilayer was proposed. Based on the proposed domain wall structure, the interface wall width and coercive force of coupled 10 nm thick Co/NiFe and Co/Fe bilayers were calculated by minimizing
Publikováno v:
Journal of Magnetics. 9:116-120
Hexagonal barium-ferrite (BaFe₁₂O_(19), magnetoplumbite structure; BaM) film with perpendicularly c-axis orientation was successfully deposited on (100) silicon substrates with an MgO (111) underlayer by rf diode sputtering and in-situ heating at
Autor:
Karsten Chipeniuk, Y. K. Hong, S. H. Gee, D. W. Erickson, J. Svendsen, Byoung-Chul Choi, M. H. Park, B. R. Pujada
Publikováno v:
Journal of Applied Physics. 96:4362-4365
Magnetization configuration and magnetic switching of submiron “Pac-man” shaped Ni80Fe20 elements with conventional and modified (i.e., elongated) geometry have been studied using magnetic force microscopy, magneto-optical Kerr effect, and microm
Publikováno v:
Journal of the Korean Magnetics Society. 14:169-173
We have synthesized monodispersed -F nano particles to investigate the spin change during the Morin transition temperature( ). The particle size was founded to have a very uniform distribution of 80 nm by x-ray diffraction and size dispersion analyze