134 citations · 250 across the 7 of their papers we have counts for
7 papers
Room And Cryogenic Temperature Behaviour of Magnetic Sensors Based on Gan/Si Single Saw Resonators
Alexandra Nicoloiu, Florin Ciubotaru, Claudia Nastase +6
This work analyzes resonance frequency shift vs. the applied magnetic field strength for GHz operating GaN/Si SAW single resonators. Magnetostrictive elements (Ni and CoFeB) were d…
Excitation and propagation of spin waves in non-uniformly magnetized waveguides
Frederic Vanderveken, Hasnain Ahmad, Marc Heyns +3
The characteristics of spin waves in ferromagnetic waveguides with nonuniform magnetization have been investigated for situations where the shape anisotropy field of the waveguide…
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 complete 180 degree reversal of magnetization in isolated Co-nanomagnets on a PMN-PT substrate with voltage generated strain
Ayan Kumar Biswas, Hasnain Ahmad, Jayasimha Atulasimha +1
Rotating the magnetization of a shape anisotropic magnetostrictive nanomagnet with voltage-generated stress/strain dissipates much less energy than most other magnetization rotatio…
Reversible strain-induced magnetization switching in FeGa nanomagnets: Pathway to a rewritable, non-volatile, non-toggle, straintronic memory cell for extremely low energy operation
Hasnain Ahmad, Jayasimha Atulasimha, Supriyo Bandyopadhyay
Reversible straintronic switching of a nanomagnet's magnetization between two stable or metastable states promises ultra-energy-efficient non-volatile memory. Here, we report strai…
Electric field control of magnetic states in isolated and dipole-coupled FeGa nanomagnets delineated on a PMN-PT substrate
Hasnain Ahmad, Jayasimha Atulasimha, Supriyo Bandyopadhyay
We report observation of a "non-volatile" converse magneto-electric effect in elliptical FeGa nanomagnets delineated on a piezoelectric PMN-PT substrate. The nanomagnets are initia…
Coherent spin transport and suppression of spin relaxation in InSb nanowires with single subband occupancy at room temperature
Saumil Bandyopadhyay, Md. Iftekhar Hossain, Hasnain Ahmad +2
A longstanding goal of spintronics is to inject, coherently transport, and detect spins in a semiconductor nanowire where a SINGLE quantized subband is occupied at room temperature…