Writer Performance Optimization with Shingled Rounded Corner and Exchange Coupled Composite Media
نویسندگان
چکیده
The shingled magnetic recording (SMR) with exchange coupled composite (ECC) media is a feasible method to achieve the areal density of multi-Tera-bit/in2. However, rounded corner inevitable due deviations from fabrication process writer. modeled and characterized by two parameters: angle (θ) length (L). This paper investigates influence effect on field distribution, writing capability, bit error rate (BER), erase band width (EBW) SMR. analysis suggests that an optimized structure can increase write gradient reduce stray avoid adjacent track encroachment. results show if writer θ = 40° L 3 nm elaborately constructed, attain peak value 552 Oe/nm, performance system be improved.
منابع مشابه
Testing of Rounded Corner for Micro-Drill on Hybrid of BP Neural Network and Adaptive Particle Swarm Optimization
A new approach based on hybrid of linear BP neural network and particle swarm optimization algorithm for fitting of micro-drill’s margin projection is proposed. The network is structured according to fitting equation, where sampled point coordinates of micro-drill and their recombination are taken as 6 inputs, and one output is obtained. The square of difference between the output and constant ...
متن کاملOscillating behaviour of the spectrum for a plasmonic problem in a domain with a rounded corner
We investigate the eigenvalue problem −div(σ∇u) = λu (P) in a 2D domain Ω divided into two regions Ω±. We are interested in situations where σ takes positive values on Ω+ and negative ones on Ω−. Such problems appear in time harmonic electromagnetics in the modeling of plasmonic technologies. In a recent work [15], we highlighted an unusual instability phenomenon for the source term problem ass...
متن کاملA random coordinate descent algorithm for optimization problems with composite objective function and linear coupled constraints
In this paper we propose a variant of the random coordinate descent method for solving linearly constrained convex optimization problems with composite objective functions. If the smooth part of the objective function has Lipschitz continuous gradient, then we prove that our method obtains an ε-optimal solution in O(N/ε) iterations, where N is the number of blocks. For the class of problems wit...
متن کاملCharacterization of At- species in simple and biological media by high performance anion exchange chromatography coupled to gamma detector.
Astatine is a rare radioelement belonging to the halogen group. Considering the trace amounts of astatine produced in cyclotrons, its chemistry cannot be evaluated by spectroscopic tools. Analytical tools, provided that they are coupled with a radioactive detection system, may be an alternative way to study its chemistry. In this research work, high performance anion exchange chromatography (HP...
متن کاملOptimization of Dynamic Binding Capacity of Anion Exchange Chromatography Media for Recombinant Erythropoietin Purification
Background:The dynamic binding capacity (DBC) of a chromatography matrix in protein purification is the amount of the total protein absorbed into the matrix, before occurrence of a significant break in the breakthrough curve. Optimization of the process criteria for maximum DBC avoids extra process scale-up and reduces ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Crystals
سال: 2022
ISSN: ['2073-4352']
DOI: https://doi.org/10.3390/cryst12091261