138 citations · 525 across the 11 of their papers we have counts for
12 papers
Dense pentacene cocrystal demonstrates room-temperature coherent control
Noella D'Souza, Guangzhao Chen, Madhur Parashar +13
Maximizing the number of addressable spins within a fixed volume can improve ensemble quantum sensor sensitivity, but dense packing usually increases dipolar interactions and excit…
Room-temperature quantum sensing with photoexcited triplet electrons in organic crystals
Harpreet Singh, Noella D'Souza, Keyuan Zhong +6
Quantum sensors have notably advanced high-sensitivity magnetic field detection. Here, we report quantum sensors constructed from polarized spin-triplet electrons in photoexcited o…
Nanoscale engineering and dynamical stabilization of mesoscopic spin textures
Kieren Harkins, Christoph Fleckenstein, Noella D'Souza +16
Thermalization phenomena, while ubiquitous in quantum systems, have traditionally been viewed as obstacles to be mitigated. In this study, we demonstrate the ability, instead, to h…
Energy-efficient switching of nanomagnets for computing: Straintronics and other methodologies
Noel D'Souza, Ayan Biswas, Hasnain Ahmad +7
The need for increasingly powerful computing hardware has spawned many ideas stipulating, primarily, the replacement of traditional transistors with alternate "switches" that dissi…
Experimental demonstration of acoustic wave induced magnetization switching of dipole coupled magnetostrictive nanomagnets for ultralow power computing
Vimal Sampath, Noel DSouza, Gary Atkinson +2
We report nanomagnetic switching with Acoustic Waves (AW) launched from interdigitated electrodes that modulate the stress anisotropy of elliptical cobalt nanoscale magnetostrictiv…
Giant Voltage Manipulation of MgO-based Magnetic Tunnel Junctions via Localized Anisotropic Strain: a Potential Pathway to Ultra-Energy-Efficient Memory Technology
Zhengyang Zhao, Mahdi Jamali, Noel D'Souza +4
Strain-mediated voltage control of magnetization in piezoelectric/ferromagnetic systems is a promising mechanism to implement energy-efficient spintronic memory devices. Here, we d…
Switching the magnetization of magnetostrictive nanomagnets from single-domain to non-volatile vortex states with a surface acoustic wave
Vimal Sampath, Noel ďSouza, Dhritiman Bhattacharya +3
We report manipulation of the magnetic states of elliptical cobalt magnetostrictive nanomagnets (of nominal dimensions ~ 340 nm x 270 nm x 12 nm) delineated on bulk 128° Y-cut lith…
Incoherent magnetization dynamics in strain mediated switching of magnetostrictive nanomagnets
Dhritiman Bhattacharya, Md Mamun Al-Rashid, Noel D'Souza +2
Micromagnetic studies of the magnetization change in magnetostrictive nanomagnets subjected to stress are performed for nanomagnets of different sizes. The interplay between demagn…
Experimental Clocking of Nanomagnets with Strain for Ultra Low Power Boolean Logic
Noel D'Souza, Mohammad Salehi Fashami, Supriyo Bandyopadhyay +1
Nanomagnetic implementations of Boolean logic [1,2] have garnered attention because of their non-volatility and the potential for unprecedented energy-efficiency. Unfortunately, th…
Exploring Performance, Coherence, and Clocking of Magnetization in Multiferroic Four-State Nanomagnets
Mohammad Salehi Fashami, Noel D'Souza
Nanomagnetic memory and logic are currently seen as promising candidates to replace current digital computing architectures due to its superior energy-efficiency, non-volatility an…
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…
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…