548 research outputs found
Performance Modeling, Design, and Benchmarking for Beyond-CMOS Devices and Circuits
No full textPresented on November 28, 2017 at 12:00 p.m. in the Marcus Nanotechnology Building, room 1116.Azad Naeemi is a professor in the School of Electrical and Computer Engineering at the Georgia Institute of Technology. Professor Naeemi’s research focuses on modeling and design for emerging materials, devices, and interconnects, and he explores novel circuit architectures to exploit emerging devices to their full potentials. As such, his research crosses many levels of abstraction and covers a diverse set of electronic, magnetic/spintronic, ferroelectric, and multiferroic components and circuits.Runtime: 52:58 minutesA diverse set of novel materials, physical phenomena, interconnects, logic and memory devices, and circuit/system concepts are being studied globally to sustain the exponential growth of the computational power of integrated circuits. As such, the search for beyond-CMOS devices and circuits must deal with all the levels of abstraction and must take a holistic approach to evaluate the potential performance of each possible option. In this talk, I will first present physical models for electronic and spintronic transport properties of various conventional and emerging materials such as graphene, Si and Cu. Then I will present compact physical models (SPICE models) for various physical phenomena such as nanomagnet dynamics, spin-orbit coupling and spin waves. The utilization of these models for device modeling will then be discussed and I will show how these models can be used to model the behavior of some of the proposed beyond-CMOS devices and to evaluate their potential performance once they are used in various representative Boolean and neuromorphic circuits. Through several examples, I will show how this process can be used to identify the main limiting factors for each device and to revise and refine them
Maulana Abul Kalam Azad: The Social Reformer
No full textThis paper discusses the contribution of Maulana Abul Kalam Azad towards development of education in the country. The author remarked that, Maulana Abul Kalam Azad emphasized on the speedy progress of adult education and observed that without education, electorate democracy could not perform the functions expected of it
Ulnar collateral ligament injuries of the thumb- An overview of the injury and treatment
No full textModeling and Optimization of Plasmonic Detectors for Beyond-CMOS Plasmonic Majority Logic Gates
No full textIn this work, we report the modeling and design of a high-speed Ge-based plasmonic detector coupled with a Metal-Insulator-Metal (MIM) plasmonic majority gate. The detector is designed to distinguish between multiple output levels of the integrated majority gate. Through numerical analyses we predict the proposed plasmonic detector has an intrinsic bandwidth beyond 220 GHz at an applied bias of only 100 mV . An asymmetric Metal-Semiconductor-Metal (MSM) configuration of the plasmonic detector ensures a dark current of a few nA which results in high sensitivity. The high electric field generated by the electrode asymmetry enables effective separation of the photogenerated carriers resulting in high photocurrent even at few mVs of applied bias. The low capacitance of less than 1fF arising from the small detector dimensions results in a high RC-limited bandwidth. Moreover, the narrow plasmonic Ge slot of the photodetector provides a short drift path and fast transit time for carriers. Unlike previously reported plasmonic detectors that use noble metals as electrodes, our proposed detector employs Al and Cu to meet CMOS compatibility requirements and thus can be a potential candidate for high-speed computational systems in industry-level applications. Additionally, the findings presented in the article will be helpful for the future realization of an integrated plasmonic system.sponsorship: This work was supported by IMEC, Belgium. (IMEC, Belgium)status: Publishe
The 2021 Magnonics Roadmap
No full textMagnonics is a budding research field in nanomagnetism and nanoscience that addresses the use of spin waves (magnons) to transmit, store, and process information. The rapid advancements of this field during last one decade in terms of upsurge in research papers, review articles, citations, proposals of devices as well as introduction of new sub-topics prompted us to present the first roadmap on magnonics. This is a collection of 22 sections written by leading experts in this field who review and discuss the current status besides presenting their vision of future perspectives. Today, the principal challenges in applied magnonics are the excitation of sub-100 nm wavelength magnons, their manipulation on the nanoscale and the creation of sub-micrometre devices using low-Gilbert damping magnetic materials and its interconnections to standard electronics. To this end, magnonics offers lower energy consumption, easier integrability and compatibility with CMOS structure, reprogrammability, shorter wavelength, smaller device features, anisotropic properties, negative group velocity, non-reciprocity and efficient tunability by various external stimuli to name a few. Hence, despite being a young research field, magnonics has come a long way since its early inception. This roadmap asserts a milestone for future emerging research directions in magnonics, and hopefully, it will inspire a series of exciting new articles on the same topic in the coming years.Computer Engineerin
Work in progress — Carbon nanomaterials: A platform to teach fundamentals of nanoelectronics
No full textIEEE Journal on Exploratory Solid-State Computational Devices and Circuits—Volume 9, No. 2
No full textWelcome to the seventh volume, second semiannual issue of IEEE Journal on Exploratory Solid-State Computational Devices and Circuits (JXCDC), a multidisciplinary, open-access IEEE journal that is focused on publishing seminal research in the exploration of energy-efficient computing based on physics and materials to enable new devices, circuits, and architecture that will be of great interest to integrated circuit researchers and those working in the IT industry. The articles in the journal are selectively chosen to provide insight into the architectural, circuit, and device implications of emerging quantum nanoelectronic and nanomagnetic device technologies. The discovery of new materials, devices, and circuits for energy-efficient computational circuits will be needed to enable Moore’s law to continue for computing beyond the end of the roadmap for CMOS technologies, with significant improvement in energy efficiency and cost per function
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