37 citations · 112 across the 9 of their papers we have counts for
9 papers
Spintronic Neuromorphic Hardware Using Domain Wall-Based Neurons and Quantized Synapses
Sakshi Kiran Bandekar, Arnab Ganguly, Debanjan Polley +1
In this work, we simulate the functionality of an artificial neuron and synapse using spin-orbit torque-based spintronic devices and implement a fully connected artificial neural n…
Programmable quantum emitter formation in silicon
K. Jhuria, V. Ivanov, D. Polley +12
Silicon-based quantum emitters are candidates for large-scale qubit integration due to their single-photon emission properties and potential for spin-photon interfaces with long sp…
Analysis of ultrafast magnetization switching dynamics in exchange-coupled ferromagnet-ferrimagnet heterostructures
Debanjan Polley, Jyotirmoy Chatterjee, Hyejin Jang +1
Magnetization switching in ferromagnets has so far been limited to the current-induced spin-orbit-torque effects. Recent observation of helicity-independent all-optical magnetizati…
Optical Switching in Tb/Co-Multilayer Based Nanoscale Magnetic Tunnel Junctions
Sucheta Mondal, Debanjan Polley, Akshay Pattabi +10
Magnetic tunnel junctions (MTJs) are elementary units of magnetic memory devices. For high-speed and low-power data storage and processing applications, fast reversal by an ultrash…
Picosecond Spin-Orbit Torque Induced Coherent Magnetization Switching in a Ferromagnet
Debanjan Polley, Akshay Pattabi, Ashwin Rastogi +7
Electrically controllable non-volatile magnetic memories show great potential for the replacement of semiconductor-based technologies. Recently there has been strong interest in sp…
Megahertz-rate Ultrafast X-ray Scattering and Holographic Imaging at the European XFEL
Nanna Zhou Hagström, Michael Schneider, Nico Kerber +97
The advent of X-ray free-electron lasers (XFELs) has revolutionized fundamental science, from atomic to condensed matter physics, from chemistry to biology, giving researchers acce…
Experimental evidence of inertial dynamics in ferromagnets
Kumar Neeraj, Nilesh Awari, Sergey Kovalev +17
The understanding of how spins move at pico- and femtosecond time scales is the goal of much of modern research in condensed matter physics, with implications for ultrafast and mor…
Terahertz magnetic field enhancement in an asymmetric spiral metamaterial
Debanjan Polley, Nanna Zhou Hagström, Clemens von Korff Schmising +2
We use finite element simulations in both the frequency and the time-domain to study the terahertz resonance characteristics of a metamaterial (MM) comprising a spiral connected to…
THz-driven demagnetization with Perpendicular Magnetic Anisotropy: Towards ultrafast ballistic switching
Debanjan Polley, Matteo Pancaldi, Matthias Hudl +3
We study THz-driven spin dynamics in thin CoPt films with perpendicular magnetic anisotropy. Femtosecond magneto-optical Kerr effect measurements show that demagnetization amplitud…