124 citations · 595 across the 14 of their papers we have counts for
14 papers
Robust mutual synchronization in long spin Hall nano-oscillator chains
Akash Kumar, Himanshu Fulara, Roman Khymyn +7
Mutual synchronization of N serially connected spintronic nano-oscillators increases their coherence by a factor and their output power by . Increasing the number of mutua…
Ultrathin ferrimagnetic GdFeCo films with very low damping
Lakhan Bainsla, Akash Kumar, Ahmad A. Awad +8
Ferromagnetic materials dominate as the magnetically active element in spintronic devices, but come with drawbacks such as large stray fields, and low operational frequencies. Comp…
Energy-efficient WTa/CoFeB/MgO spin Hall nano-oscillators
Nilamani Behera, Himanshu Fulara, Lakhan Bainsla +4
We investigate a W-Ta alloying route to reduce the auto-oscillation current densities and the power consumption of nano-constriction based spin Hall nano oscillators. Using spin-to…
Fabrication of voltage gated spin Hall nano-oscillators
Akash Kumar, Mona Rajabali, Victor Hugo González +3
We demonstrate an optimized fabrication process for electric field (voltage gate) controlled nano-constriction spin Hall nano-oscillators (SHNOs), achieving feature sizes of <30 nm…
Memristive control of mutual SHNO synchronization for neuromorphic computing
Mohammad Zahedinejad, Himanshu Fulara, Roman Khymyn +5
Synchronization of large spin Hall nano-oscillators (SHNO) arrays is an appealing approach toward ultra-fast non-conventional computing based on nanoscale coupled oscillator networ…
A Spin Hall Ising Machine
Afshin Houshang, Mohammad Zahedinejad, Shreyas Muralidhar +3
Ising Machines (IMs) are physical systems designed to find solutions to combinatorial optimization (CO) problems mapped onto the IM via the coupling strengths of its binary spins.…
Giant voltage control of spin Hall nano-oscillator damping
Himanshu Fulara, Mohammad Zahedinejad, Roman Khymyn +5
Spin Hall nano-oscillators (SHNOs) are emerging spintronic devices for microwave signal generation and oscillator based neuromorphic computing combining nano-scale footprint, fast…
Width dependent auto-oscillating properties of constriction based spin Hall nano-oscillators
Ahmad A. Awad, Afshin Houshang, Mohammad Zahedinejad +2
We study the current tunable microwave signal properties of nano-constriction based spin Hall nano-oscillators (SHNOs) in oblique magnetic fields as a function of the nano-constric…
Spin-Orbit-Torque-based Devices, Circuits and Architectures
Farshad Moradi, Hooman Farkhani, Behzad Zeinali +9
Spintronics, the use of spin of an electron instead of its charge, has received huge attention from research communities for different applications including memory, interconnects,…
Spin-Orbit-Torque Driven Propagating Spin Waves
Himanshu Fulara, Mohammad Zahedinejad, Roman Khymyn +4
Spin-orbit torque (SOT) can drive sustained spin wave (SW) auto-oscillations in a class of emerging microwave devices known as spin Hall nano-oscillators (SHNOs), which have highly…
Two-dimensional mutual synchronization in spin Hall nano-oscillator arrays
Mohammad Zahedinejad, Ahmad A. Awad, Shreyas Muralidhar +5
Spin Hall nano-oscillators (SHNOs) utilize pure spin currents to drive local regions of magnetic films and nanostructures into auto-oscillating precession. If such regions are plac…
Tuning spin torque nano-oscillator nonlinearity using He+ irradiation
Sheng Jiang, Roman Khymyn, Sunjae Chung +6
We use He irradiation to tune the nonlinearity, , of all-perpendicular spin-torque nano-oscillators (STNOs) using the He fluence-dependent perpendicular magnet…
Mutual synchronization of constriction-based spin Hall nano-oscillators in weak in-plane fields
Hamid Mazraati, Shreyas Muralidhar, Seyyed Ruhollah Etesami +6
We study mutual synchronization in double nanoconstriction-based spin Hall nano-oscillators (SHNOs) under weak in-plane fields ( = 30-40 mT) and also investigate…
CMOS compatible W/CoFeB/MgO spin Hall nano-oscillators with wide frequency tunability
M. Zahedinejad, H. Mazraati, H. Fulara +4
We demonstrate low-operational-current W/CoFeB/MgO spin Hall nano-oscillators (SHNOs) on highly resistive silicon (HiR-Si) substrates. Thanks to a record high…