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As CMOS nears the end of the projected scaling roadmap, significant effort has been devoted to the search for new materials and devices that can realize memory and logic. Spintronics, is one of the promising directions for the Post-CMOS…

Mesoscale and Nanoscale Physics · Physics 2016-11-18 Zoha Pajouhi , Swagath Venkataramani , Karthik Yogendra , Anand Raghunathan , Kaushik Roy

The need to find low power alternatives to digital electronic circuits has led to increasing interest in alternative switching schemes like the magnetic quantum cellular automata(MQCA) that store information in nanomagnets which communicate…

Mesoscale and Nanoscale Physics · Physics 2011-03-30 Behtash Behin-Aein , Angik Sarkar , Srikant Srinivasan , Supriyo Datta

All Spin Logic gates employ multiple nano-magnets interacting through spin-torque using non-magnetic channels. Compactness, non-volatility and ultra-low voltage operation are some of the attractive features of ASL, while, low…

Mesoscale and Nanoscale Physics · Physics 2013-08-13 Mrigank Sharad , Karthik Yogendra , Arun Gaud , Kon-Woo Kwon , Kaushik Roy

The utilization of spin waves as eigenmodes of the magnetization dynamics for information processing and communication has been widely explored recently due to its high operational speed with low power consumption and possible applications…

Materials Science · Physics 2013-11-11 Mahdi Jamali , Jae Hyun Kwon , Soo-Man Seo , Kyung-Jin Lee , Hyunsoo Yang

We show that the established physics of spin valves together with the recently discovered giant spin-Hall effect could be used to construct Read and Write units that can be integrated into a single spin switch with input-output isolation,…

Mesoscale and Nanoscale Physics · Physics 2013-01-08 Supriyo Datta , Sayeef Salahuddin , Behtash Behin-Aein

In the quest for novel, scalable and energy-efficient computing technologies, many non-charge based logic devices are being explored. Recent advances in multi-ferroic materials have paved the way for electric field induced low energy and…

Emerging Technologies · Computer Science 2016-11-24 Akhilesh Jaiswal , Kaushik Roy

All spin logic device (ASLD) blazes an alternative path for realizing ultra-low power computing in the Post-Moore era. However, initial device structure relying on ferromagnetic input/output and spin transfer torque (STT) driven…

A novel scheme for non-volatile digital computation is proposed using spin-transfer torque (STT) and automotion of magnetic domain walls (DWs). The basic computing element is composed of a lateral spin valve (SV) with two ferromagnetic (FM)…

Emerging Technologies · Computer Science 2016-09-21 Sou-Chi Chang , Sasikanth Manipatruni , Dmitri E. Nikonov , Ian A. Young , Azad Naeemi

We demonstrate for the first time that functionally complete digital logic can be created by using three terminal devices each consisting of a magnetic tunnel junction (MTJ) and spin transfer torque (STT) element with a shared free magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-03-17 Benjamin Buford , Albrecht Jander , Pallavi Dhagat

We describe a spin logic device with controllable magnetization switching of perpendicularly magnetized ferromagnet / heavy metal structures on a ferroelectric (1-x)[Pb(Mg1/3Nb2/3)O3]-x[PbTiO3] (PMN-PT) substrate using current-induced…

We propose a heterostructure device comprised of magnets and piezoelectrics that significantly improves the delay and the energy dissipation of an all-spin logic (ASL) device. This paper studies and models the physics of the device,…

A new proposal is given for designing a non-volatile, completely spin logic device, that can be reprogrammed for different functional classical logical operations. We use the concept of bias driven spin dependent circular current and…

Mesoscale and Nanoscale Physics · Physics 2021-02-04 Moumita Patra , Alok Shukla , Santanu K Maiti

In this paper we discuss the potential of emerging spintorque devices for computing applications. Recent proposals for spinbased computing schemes may be differentiated as all-spin vs. hybrid, programmable vs. fixed, and, Boolean vs.…

Disordered Systems and Neural Networks · Physics 2013-08-19 Kaushik Roy , Mrigank Sharad , Deliang Fan , Karthik Yogendra

All-spin logic device (ASLD) has attracted increasing interests as one of the most promising post-CMOS device candidates, thanks to its low power, non-volatility and logic-in-memory structure. Here we investigate the key current-limiting…

Materials Science · Physics 2015-09-24 Li Su , Youguang Zhang , Jacques-Olivier Klein , Yue Zhang , Arnaud Bournel , Albert Fert , Weisheng Zhao

All-spin-based computing combining logic and nonvolatile magnetic memory is promising for emerging information technologies. However, the realization of a universal spin logic operation representing a reconfigurable building block with…

Mesoscale and Nanoscale Physics · Physics 2024-10-11 Dmitrii Khokhriakov , Shehrin Sayed , Anamul Md. Hoque , Bogdan Karpiak , Bing Zhao , Supriyo Datta , Saroj P. Dash

Controlling the size and distribution of potential barriers within a medium of interacting particles can unveil unique collective behaviors and innovative functionalities. In this study, we introduce a unique superconducting hybrid device…

Nanomagnetic logic transmits information along a path of nanomagnets. The basic mechanism to drive such a transmission, known as clocking, can be achieved by exploiting the spin-Hall effect, as recently observed in experiments on…

Mesoscale and Nanoscale Physics · Physics 2016-03-23 Vito Puliafito , Anna Giordano , Bruno Azzerboni , Giovanni Finocchio

Exploiting spin degree of freedom of electron a new proposal is given to characterize spin-based logical operations using a quantum interferometer that can be utilized as a programmable spin logic device (PSLD). The ON and OFF states of…

Mesoscale and Nanoscale Physics · Physics 2018-09-19 Moumita Patra , Santanu K. Maiti

We propose magnetic threshold-logic (MTL) design based on non-volatile spin-torque switches. A threshold logic gate (TLG) performs summation of multiple inputs multiplied by a fixed set of weights and compares the sum with a threshold. MTL…

Emerging Technologies · Computer Science 2013-08-21 Mrigank Sharad , Deliang Fan , Kaushik Roy

Nanomagnetic logic has emerged as a potential replacement for traditional CMOS-based logic because of superior energy-efficiency. One implementation of nanomagnetic logic employs shape-anisotropic (e.g. elliptical) ferromagnets (with two…

Mesoscale and Nanoscale Physics · Physics 2016-10-12 M. Salehi-Fashami , M. Al-Rashid , Wei-Yang Sun , P. Nordeen , S. Bandyopadhyay , A. C. Chavez , G. P. Carman , J. Atulasimha
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