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The primary impediment to continued improvement of charge-based electronics is the excessive energy dissipation incurred in switching a bit of information. With suitable choice of materials, devices made of multiferroic composites, i.e.,…

Mesoscale and Nanoscale Physics · Physics 2017-10-03 Kuntal Roy

The primary impediment to continued improvement of traditional charge-based electronic devices in accordance with Moore's law is the excessive energy dissipation that takes place in the devices during switching of bits. One very promising…

Mesoscale and Nanoscale Physics · Physics 2015-06-30 Kuntal Roy

The authors show that the magnetization of a magnetostrictive/piezoelectric multiferroic single-domain shape-anisotropic nanomagnet can be switched with very small voltages that generate strain in the magnetostrictive layer. This can be the…

Mesoscale and Nanoscale Physics · Physics 2015-03-17 Kuntal Roy , Supriyo Bandyopadhyay , Jayasimha Atulasimha

The primary impediment to continued downscaling of traditional charge-based electronic devices in accordance with Moore's law is the excessive energy dissipation that takes place in the device during switching of bits. One very promising…

Mesoscale and Nanoscale Physics · Physics 2015-04-16 Kuntal Roy

Electric field-induced magnetization switching in multiferroics holds profound promise for ultra-low-energy computing in beyond Moore's law era. Bistable nanomagnets in the multiferroics are usually deemed to be suitable for storing a…

Mesoscale and Nanoscale Physics · Physics 2017-04-12 Kuntal Roy

The need for increasingly powerful computing hardware has spawned many ideas stipulating, primarily, the replacement of traditional transistors with alternate "switches" that dissipate miniscule amounts of energy when they switch and…

Multiferroic devices hold profound promise for ultra-low energy computing in beyond Moore's law era. The magnetization of a magnetostrictive shape-anisotropic single-domain nanomagnet strain-coupled with a piezoelectric layer in a…

Mesoscale and Nanoscale Physics · Physics 2015-06-26 Kuntal Roy

The desire to perform information processing, computation, communication, signal generation and related tasks, while dissipating as little energy as possible, has inspired many ideas and paradigms. One of the most powerful among them is the…

Mesoscale and Nanoscale Physics · Physics 2022-01-27 Supriyo Bandyopadhyay , Jayasimha Atulasimha , Anjan Barman

Strain-mediated multiferroic composites, i.e., piezoelectric-magnetostrictive heterostructures, hold profound promise for energy-efficient computing in beyond Moore's law era. While reading a bit of information stored in the…

Mesoscale and Nanoscale Physics · Physics 2015-06-26 Kuntal Roy

Electric-field induced magnetization switching in multiferroic magnetoelectric devices is promising for beyond Moore's law computing. We show here that interface-coupled multiferroic heterostructures, i.e., a ferroelectric layer coupled…

Mesoscale and Nanoscale Physics · Physics 2015-04-22 Kuntal Roy

The development of new computing technologies has given a new stimulus in the study of multiferroics. The use of multiferroics allows the realization of competitive energy efficient scalable logic and storage devices. The low-power…

Materials Science · Physics 2023-10-10 Z. V. Gareeva , N. V. Shulga , A. K. Zvezdin

It has been recently shown that multiferroic logic - where logic bits are encoded in the magnetization orientation of a nanoscale magnetostrictive layer elastically coupled to a piezoelectric layer - can be Bennett clocked with small…

Mesoscale and Nanoscale Physics · Physics 2015-04-30 Mohammad Salehi Fashami , Kuntal Roy , Jayasimha Atulasimha , Supriyo Bandyopadhyay

Magnetic straintronics, the strain-mediated control of magnetic anisotropy, has emerged as a key direction for next-generation energy-efficient technologies. In multiferroic heterostructures, magnetoelectric coupling is typically achieved…

Magneto-elastic (or "straintronic") switching has emerged as an extremely energy-efficient mechanism for switching the magnetization of magnetostrictive nanomagnets in magnetic memory, logic and non-Boolean circuits. Here, we investigate…

Mesoscale and Nanoscale Physics · Physics 2019-02-12 Sucheta Mondal , Md Ahsanul Abeed , Koustuv Dutta , Anulekha De , Sourav Sahoo , Anjan Barman , Supriyo Bandyopadhyay

Electric field-induced magnetization switching in multiferroics is intriguing for both fundamental studies and potential technological applications. Here, we review the recent developments on electric field-induced magnetization switching…

Mesoscale and Nanoscale Physics · Physics 2017-06-12 Kuntal Roy

Nanomagnetic implementations of Boolean logic [1,2] have garnered attention because of their non-volatility and the potential for unprecedented energy-efficiency. Unfortunately, the large dissipative losses that take place when nanomagnets…

Mesoscale and Nanoscale Physics · Physics 2016-02-18 Noel D'Souza , Mohammad Salehi Fashami , Supriyo Bandyopadhyay , Jayasimha Atulasimha

Switching the magnetization of a shape-anisotropic 2-phase multiferroic nanomagnet with voltage-generated stress is known to dissipate very little energy ($<$ 1 aJ for a switching time of $\sim$0.5 ns) at 0 K temperature. Here, we show by…

Mesoscale and Nanoscale Physics · Physics 2012-08-02 Kuntal Roy , Supriyo Bandyopadhyay , Jayasimha Atulasimha

The advent of caloric materials for magnetocaloric, elastocaloric, and electrocaloric cooling is changing the landscape of solid state cooling technologies with potentials for high-efficiency and environmentally-friendly residential and…

Materials Science · Physics 2019-02-12 Huilong Hou , Peter Finkel , Margo Staruch , Jun Cui , Ichiro Takeuchi

Modulation of stress anisotropy of magnetostrictive nanomagnets with strain offers an extremely energy-efficient method of magnetization reversal. The reversal process, however, is often incoherent and hence error-prone in the presence of…

Mesoscale and Nanoscale Physics · Physics 2016-07-26 Md Mamun Al-Rashid , Supriyo Bandyopadhyay Jayasimha Atulasimha

In this work, we consider the possibility of using synthetic multiferroics comprising piezoelectric and magnetostrictive materials as an interconnect for nano magnetic logic circuits. The proposed interconnect resembles a parallel plate…

Materials Science · Physics 2013-10-01 Alexander Khitun
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