14 citations · 16 across the 11 of their papers we have counts for
11 papers
Everything is a Spin: The Secret Lives of SU(2)
Avik W Ghosh
Spin, pseudospin, valley, polarization, and other two-component degrees of freedom share the geometry of SU(2), yet their topological manifestations are usually discussed as separa…
Enhanced detection of circularly polarized photons with topological materials
Hamideh Sharifpour, Avik W. Ghosh, George J. de Coster
Topological insulators (TI) are highly attractive platforms for next-generation optoelectronic and photonic devices. Spin-momentum locking of topological surface states enhances th…
Switching perpendicular magnets for Processing-in-memory with voltage gated Weyl Semimetals
Youjian Chen, Hamed Vakili, Md Golam Morshed +1
Processing-in-memory (PIM) reduces data transfer latency by rolling memory and logic elements into one compute location. As an emergent material candidate for such an architecture,…
Adaptive Synaptogenesis Implemented on a Nanomagnetic Platform
Faiyaz Elahi Mullick, Supriyo Bandyopadhyay, Rob Baxter +2
The human brain functions very differently from artificial neural networks (ANN) and possesses unique features that are absent in ANN. An important one among them is "adaptive syna…
Strained topological insulator spin-orbit torque random access memory (STI-SOTRAM) bit cell for energy-efficient Processing in Memory
Md Golam Morshed, Hamed Vakili, Mohammad Nazmus Sakib +3
We present a novel design of a strained topological insulator spin-orbit torque random access memory (STI-SOTRAM) bit cell comprising a piezoelectric/magnet (gating)/topological in…
Temperature-Resilient True Random Number Generation with Stochastic Actuated Magnetic Tunnel Junction Devices
Laura Rehm, Md Golam Morshed, Shashank Misra +5
Nanoscale magnetic tunnel junction (MTJ) devices can efficiently convert thermal energy in the environment into random bitstreams for computational modeling and cryptography. We re…
Reduced sensitivity to process, voltage and temperature variations in activated perpendicular magnetic tunnel junctions based stochastic devices
Md Golam Morshed, Laura Rehm, Ankit Shukla +5
True random number generators (TRNGs) are fundamental building blocks for many applications, such as cryptography, Monte Carlo simulations, neuromorphic computing, and probabilisti…
Phase Change Induced Magnetic Switching through Metal-insulator Transition in VO2/TbFeCo Films
Chung T. Ma, Salinporn Kittiwatnakul, Apiprach Sittipongpittaya +4
The ability to manipulate spins in magnetic materials is essential in designing spintronics devices. One method for magnetic switching is through strain. In VO2 on TiO2 thin films,…
Robust Formation of Ultrasmall Room-Temperature Neél Skyrmions in Amorphous Ferrimagnets from Atomistic Simulations
Chung Ting Ma, Yunkun Xie, Howard Sheng +2
Neél skyrmions originate from interfacial Dzyaloshinskii Moriya interaction (DMI). Recent studies have explored using thin-film ferromagnets and ferrimagnets to host Neél skyrmions…
Atomic scale characterization of graphene p-n junctions for electron-optical applications
Xiaodong Zhou, Alexander Kerelsky, Mirza M. Elahi +8
Graphene p-n junctions offer a potentially powerful approach towards controlling electron trajectories via collimation and focusing in ballistic solid-state devices. The ability of…
Chiral tunneling of topological states: towards the efficient generation of spin current using spin-momentum locking
K. M. Masum Habib, Redwan N. Sajjad, Avik W. Ghosh
We show that the interplay between chiral tunneling and spin-momentum locking of helical surface states leads to spin amplification and filtering in a 3D Topological Insulator (TI)…