51. From materials to systems: a multiscale analysis of nanomagnetic switching
- Author
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Yunkun Xie, Avik W. Ghosh, Samiran Ganguly, and Jianhua Ma
- Subjects
010302 applied physics ,Condensed Matter - Mesoscale and Nanoscale Physics ,Computer science ,Transistor ,Overhead (engineering) ,FOS: Physical sciences ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,Reliability (semiconductor) ,law ,Modeling and Simulation ,Magnet ,Mesoscale and Nanoscale Physics (cond-mat.mes-hall) ,0103 physical sciences ,Scalability ,Electronic engineering ,Torque ,Electronics ,Electrical and Electronic Engineering ,0210 nano-technology ,Energy (signal processing) - Abstract
With the increasing demand for low-power electronics, nanomagnetic devices have emerged as strong potential candidates to complement present day transistor technology. A variety of novel switching effects such as spin torque and giant spin Hall offer scalable ways to manipulate nano-sized magnets. However, the low intrinsic energy cost of switching spins is often compromised by the energy consumed in the overhead circuitry in creating the necessary switching fields. Scaling brings in added concerns such as the ability to distinguish states (readability) and to write information without spontaneous backflips (reliability). A viable device must ultimately navigate a complex multi-dimensional material and design space defined by volume, energy budget, speed and a target read-write-retention error. In this paper, we review the major challenges facing nanomagnetic devices and present a multi-scale computational framework to explore possible innovations at different levels (material, device, or circuit), along with a holistic understanding of their overall energy-delay-reliability tradeoff., Submitted to Journal of Computational Electronics Special Issue "Computational Electronics of Emerging Memory Elements" more...
- Published
- 2017