99 citations · 167 across the 11 of their papers we have counts for
11 papers
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,…
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…
Majorana bound states in d-wave superconductor planar Josephson junction
Hamed Vakili, Moaz Ali, Mohamed Elekhtiar +1
We study phase-controlled planar Josephson junctions comprising a two-dimensional electron gas with strong spin-orbit coupling and d-wave superconductors, which have an advantage o…
A simplified drift-diffusion model for pandemic propagation
Clara Bender, Abhimanyu Ghosh, Hamed Vakili +2
Predicting Pandemic evolution involves complex modeling challenges, often requiring detailed discrete mathematics executed on large volumes of epidemiological data. Differential eq…
Spin Hall effect of vorticity
Edward Schwartz, Hamed Vakili, Moaz Ali +1
Using mapping between topological defects in an easy-plane magnet and electrical charges, we study interplay between vorticity and spin currents. We demonstrate that the flow of vo…
Low power In Memory Computation with Reciprocal Ferromagnet/Topological Insulator Heterostructures
Hamed Vakili, Samiran Ganguly, George J. de Coster +2
The surface state of a 3D topological insulator (3DTI) is a spin-momentum locked conductive state, whose large spin hall angle can be used for the energy-efficient spin orbit torqu…
Anatomy of nanomagnetic switching at a 3D Topological Insulator PN junction
Hamed Vakili, Yunkun Xie, Samiran Ganguly +1
A P-N junction engineered within a Dirac cone system acts as a gate tunable angular filter based on Klein tunneling. For a 3D topological insulator with substantial bandgap, such a…
Positional stability of skyrmions in a racetrack memory with notched geometry
Md Golam Morshed, Hamed Vakili, Avik W. Ghosh
Magnetic skyrmions are chiral spin textures with attractive features, such as ultra-small size, solitonic nature, and easy mobility with small electrical currents that make them pr…
Computing and Memory Technologies based on Magnetic Skyrmions
Hamed Vakili, Wei Zhou, Chung T Ma +13
Solitonic magnetic excitations such as domain walls and, specifically, skyrmionics enable the possibility of compact, high density, ultrafast,all-electronic, low-energy devices, wh…
Temporal Memory with Magnetic Racetracks
Hamed Vakili, Mohammad Nazmus Sakib, Samiran Ganguly +5
Race logic is a relative timing code that represents information in a wavefront of digital edges on a set of wires in order to accelerate dynamic programming and machine learning a…
Self focusing Hybrid Skyrmions in spatially varying canted ferromagnetic systems
Hamed Vakili, Yunkun Xie, Avik W. Ghosh
Magnetic skyrmions are quasiparticle configurations in a magnetic film that can act as information carrying bits for ultrasmall, all-electronic nonvolatile memory. The skyrmions ca…