252 citations · 898 across the 29 of their papers we have counts for
29 papers
Spin-circuit representation of spin pumping into topological insulators and determination of giant spin Hall angle and inverse spin Hall voltages
Kuntal Roy
Topological insulators and giant spin-orbit toque switching of nanomagnets are one of the frontier topics for the development of energy-efficient spintronic devices. Spin-circuit r…
Spin-circuit representation of spin-torque ferromagnetic resonance
Kuntal Roy
Spin-torque ferromagnetic resonance (ST-FMR) particularly using magnetic insulators and heavy metals possessing a giant spin Hall effect (SHE) has gotten a lot of attention for the…
Colossal stability of antiferromagnetically exchange coupled nanomagnets
Kuntal Roy
Bistable nanomagnets store a binary bit of information. Exchange coupled nanomagnets can increase the thermal stability at low dimensions. Here we show that the antiferromagnetical…
Determining complex spin mixing conductance and spin diffusion length from spin pumping experiments in magnetic insulator/heavy metal bilayers
Kuntal Roy
Magnetic insulators are promising materials for the development of energy-efficient spintronics. Unlike metallic counterparts, the magnetic insulators are characterized by imaginar…
Ultra-Low-Energy Straintronics Using Multiferroic Composites
Kuntal Roy
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…
Ultra-low-energy Electric field-induced Magnetization Switching in Multiferroic Heterostructures
Kuntal Roy
Electric field-induced magnetization switching in multiferroics is intriguing for both fundamental studies and potential technological applications. Here, we review the recent deve…
Estimating spin diffusion length and spin Hall angle from spin pumping-induced inverse spin Hall voltages
Kuntal Roy
There exists considerable confusion in estimating the spin diffusion length of materials with high spin-orbit coupling from spin pumping experiments. For designing functional devic…
Spin circuit representation of spin pumping
Kuntal Roy
Circuit theory has been tremendously successful in translating physical equations into circuit elements in organized form for further analysis and proposing creative designs for ap…
Ultralow Energy Analog Straintronics Using Multiferroic Composites
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 multife…
Ultra-low-energy straintronics using multiferroic composites
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 i…
Landauer limit of energy dissipation in a magnetostrictive particle
Kuntal Roy
According to Landauer's principle, a minimum amount of energy proportional to temperature must be dissipated during the erasure of a classical bit of information compensating the e…
Separating read and write units in multiferroic devices
Kuntal Roy
Strain-mediated multiferroic composites, i.e., piezoelectric-magnetostrictive heterostructures, hold profound promise for energy-efficient computing in beyond Moore's law era. Whil…
Dynamical systems study in single-phase multiferroic materials
Kuntal Roy
Electric field induced magnetization switching in single-phase multiferroic materials is intriguing for both fundamental studies and potential technological applications. Here we d…
Area-Delay-Energy Tradeoffs of Strain-Mediated Multiferroic Devices
Kuntal Roy
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 nanomag…
Ultra-low-energy straintronics using multiferroic composites
Kuntal Roy
This paper reviews the recent developments on building nanoelectronics for our future information processing paradigm using multiferroic composites. With appropriate choice of mate…
Electric field-induced magnetization switching in interface-coupled multiferroic heterostructures: A highly-dense, non-volatile, and ultra-low-energy computing paradigm
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 multiferro…
Critical analysis and remedy of switching failures in straintronic logic using Bennett clocking in the presence of thermal fluctuations
Kuntal Roy
Straintronic logic is a promising platform for beyond Moore's law computing. Using Bennett clocking mechanism, information can propagate through an array of strain-mediated multife…
Ultra-low-energy non-volatile straintronic computing using single multiferroic composites
Kuntal Roy
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 i…
Comment on "An error-resilient non-volatile magneto-elastic universal logic gate with ultralow energy-delay product" [Sci. Rep. 4, 7553 (2014)]
Kuntal Roy
arXiv admin note: This submission has been withdrawn by arXiv administrators due to unprofessional personal attack.
Response to "Comment on "Ultra-low-energy non-volatile straintronic computing using single multiferroic composites"" [Appl. Phys. Lett. 103, 173110 (2013)]
Kuntal Roy
arXiv admin note: This submission has been withdrawn by arXiv administrators due to unprofessional personal attack.
Comment on some articles regarding magnetization switching and computing using strain-mediated multiferroic composites
Kuntal Roy
This posting addresses the incorrect information (about my papers) and analysis provided in the following articles: arXiv:1405.4000/Nanotechnology 26, 245202 (2015), arXiv:1412.776…
Binary switching in a symmetric potential landscape
Kuntal Roy, Supriyo Bandyopadhyay, Jayasimha Atulasimha
The general methodology of binary switching requires tilting of potential landscape along the desired direction of switching. The tilt generates a torque along the direction of swi…
Energy dissipation and switching delay in stress-induced switching of multiferroic devices in the presence of thermal fluctuations
Kuntal Roy, 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…
Energy dissipation and switching delay in spin-transfer torque switching of nanomagnets with low-saturation magnetization in the presence of thermal fluctuations
Kuntal Roy, Supriyo Bandyopadhyay, Jayasimha Atulasimha +2
A common ploy to reduce the switching current and energy dissipation in spin-transfer-torque driven magnetization switching of shape-anisotropic single-domain nanomagnets is to emp…