Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/150361
Title: NOVEL SPIN-BASED NANOELECTRONIC DEVICES FOR FUTURE COMPUTING SYSTEMS
Authors: MISHRA RAHUL
Keywords: spintronics, spin-orbit torque, magnetic memory, gating, ferrimagnets, neuromorphic
Issue Date: 20-Aug-2018
Citation: MISHRA RAHUL (2018-08-20). NOVEL SPIN-BASED NANOELECTRONIC DEVICES FOR FUTURE COMPUTING SYSTEMS. ScholarBank@NUS Repository.
Abstract: In this thesis, we demonstrate novel spin-based devices that makes spintronics viable for future the computing systems. We have discovered a new type of torque, negative exchange torque, present in ferrimagnets and demonstrate the superior efficiency of these devices. We demonstrate prototype of a programmable spin-orbit torque device in which both the polarity and strength of spin-orbit torque can be tuned. The demonstration of direction modulation of spin accumulation dynamically has been achieved for the first time. This finding offers substantial improvement to spin-orbit torque based memory scheme as well as create opportunities for novel applications such as spin-logic circuits and programmable spin-circuits. A magnetic device based on oxygen migration that emulates wide range of biological synaptic functions is also demonstrated in the thesis. Our oxygen migration based magnetic-synapse can mimic synaptic plasticity, potentiation, depression, spike-timing and –rate dependent plasticity. The spin devices presented in this thesis expands the scope of spintronics in the real-life applications.
URI: http://scholarbank.nus.edu.sg/handle/10635/150361
Appears in Collections:Ph.D Theses (Open)

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