252 citations · 2.6k across the 79 of their papers we have counts for
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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…
An ultrafast image recovery and recognition system implemented with nanomagnets possessing biaxial magnetocrystalline anisotropy
Noel D'Souza, Jayasimha Atulasimha, Supriyo Bandyopadhyay
A circular magnetic disk with biaxial magnetocrystalline anisotropy has four stable magnetization states which can be used to encode a pixel's shade in a black/gray/white image. By…
Magnetization Dynamics, Throughput and Energy Dissipation in a Universal Multiferroic Nanomagnetic Logic Gate with Fan-in and Fan-out
Mohammad Salehi Fashami, Jayasimha Atulasimha, Supriyo Bandyopadhyay
The switching dynamics of a multiferroic nanomagnetic NAND gate with fan-in/fan-out is simulated by solving the Landau-Lifshitz-Gilbert (LLG) equation while neglecting thermal fluc…
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…
Metastable state in a shape-anisotropic single-domain nanomagnet subjected to spin-transfer-torque
Kuntal Roy, Supriyo Bandyopadhyay, Jayasimha Atulasimha
We predict the existence of a new metastable magnetization state in a single-domain nanomagnet with uniaxial shape anisotropy. It emerges when a spin-polarized current, delivering…
An Energy-Efficient Bennett Clocking Scheme for 4-State Multiferroic Logic
Noel D'Souza, Jayasimha Atulasimha, Supriyo Bandyopadhyay
Nanomagnets with biaxial magnetocrystalline anisotropy have four stable magnetization orientations that can encode 4-state logic bits (00), (01), (11) and (10). Recently, a 4-state…
Switching dynamics of a magnetostrictive single-domain nanomagnet subjected to stress
Kuntal Roy, Supriyo Bandyopadhyay, Jayasimha Atulasimha
The temporal evolution of the magnetization vector of a single-domain magnetostrictive nanomagnet, subjected to in-plane stress, is studied by solving the Landau-Lifshitz-Gilbert e…
Hybrid spintronics and straintronics: A magnetic technology for ultra low energy computing and signal processing
Kuntal Roy, Supriyo Bandyopadhyay, Jayasimha Atulasimha
The authors show that the magnetization of a magnetostrictive/piezoelectric multiferroic single-domain shape-anisotropic nanomagnet can be switched with very small voltages that ge…
Four-state nanomagnetic logic using multiferroics
Noel D'Souza, Jayasimha Atulasimha, Supriyo Bandyopadhyay
The authors show how to implement a 4-state universal logic gate (NOR) using three strain-coupled magnetostrictive-piezoelectric multiferroic nanomagnets (e.g. Ni/PZT) with biaxial…