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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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Title: Wave based Computing using Magnons and Plasmons for Beyond-CMOS Logic and Memory Application
Committee:
Dr. Naeemi, Advisor
Dr. Davis, Chair
Dr. Raychowdhury
Abstract:
The objective of the proposed research is to develop a comprehensive scheme for developing a clocked non-volatile spin wave logic device along with efficient transduction between spin and charge domain has been proposed. Magneto-electric effect is used for efficient spin wave excitation, detection and non-volatile data storage (memory-in-logic). The proposed novel clocking scheme en- sures non-reciprocity and sequential transmission of information. Identification of suitable materials and robustness with respect to thermal noise and variability has also been ex- plored for practical realization of an all-magnon based computing system. For seamless in- tegration of the developed micromagnetics based spin wave device model with other CMOS and microelectronics circuit elements, a formalism of a SPICE based compact model for circuit simulation of spin wave device and interconnects has been provided. The developed idea of wave-based computing using wave interference is further extended to the field of plasmonics to develop a nanoscale plasmonics majority logic gate with potential applica- tion in non-boolean computing and envision a hybrid spintronics-plasmonics computing platform. While spin wave logic has been the primary focus till now with wave-based com- puting idea extending to plasmonics as well, in the proposed future research the focus will be on the fundamental interactions between propagating spin waves and other magnetic structures like a domain wall or of particular interest, skyrmions. The proposed work will enable the development of a magnon driven skyrmion race-track memory.
