Professor Randall Victora

Project Title: 
Computational Magnetics

This group performs calculations of magnetic properties useful for applications, particularly magnetic recording and microwave interactions with magnetic materials. They are using MSI to calculate quantities such as adjacent track erasure and user density, employing their micromagnetic Heat-Assisted Magnetic Recording simulation that uses renormalized media cells to represent the high temperature behavior. They are currently using the code to discover novel media that produces reduced jitter and improved bit error rate. The most computationally intensive part involves magnetostatic interactions between different parts of the recording media: it was extensively optimized, and the optimization techniques are published in the IEEE Journal on Multiscale and Multiphysics Computational Techniques

The group also expects to calculate the SNR and error rates of magnon (spin wave) transmitted information at high data rates approaching 10GBit/.sec. The proposed systems use much less energy than traditional CPUs and interconnects because there is no ohmic loss. However, the magnetic transmission lines distort the bits: the group's goal is to find techniques that minimize this distortion. The most computationally intensive part involves magnetostatic interactions between different parts of the transmission line: it was extensively optimized using the same techniques as the recording code.

Project Investigators

Runzi Hao
Yijia Liu
Emily Qu
Professor Randall Victora
Kun Xue
 
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