8 papers
Spin-Orbital Hall Nano-Oscillators using PtCr/NiFe
Utkarsh Shashank, Akash Kumar, Daegeun Jo +11
The orbital Hall effect provides a promising route for generating angular-momentum currents beyond conventional spin Hall physics. PtCr alloys exhibit unusually large current-induc…
A 2048-spin bulk acoustic wave Ising machine for number partitioning and Sudoku
Venkatesh Vadde, Roman Ovcharov, Victor H. González +3
Optical coherent Ising machines based on time-multiplexing have demonstrated significant progress in terms of connectivity and spin scalability. However, they are constrained by la…
Mutual synchronization of two asymmetric-nano-constriction-based spin-Hall nano-oscillators
Roman V. Ovcharov, Roman S. Khymyn, Akash Kumar +1
We propose an asymmetric-nanoconstriction (ANC) design of spin-Hall nano-oscillators (SHNOs) and investigate mutual synchronization of a pair of such devices using micromagnetic si…
Analytical modelling for the frequency behavior of two distinct modes in nano-constriction spin Hall nano-oscillator
H. Ghanatian, M. Rajabali, R. Khymyn +5
Nano-constriction spin-Hall nano-oscillators (NC-SHNOs) have garnered considerable interest due to their potential use as efficient and adjustable nano-sized sources of microwave s…
Ultra-large mutually synchronized networks of 10 nm spin Hall nano-oscillators
Nilamani Behera, Avinash Kumar Chaurasiya, Akash Kumar +5
While mutually interacting spin Hall nano-oscillators (SHNOs) hold great promise for wireless communication, neural networks, neuromorphic computing, and Ising machines, the highes…
Mutual synchronization in spin torque and spin Hall nano-oscillators
Akash Kumar, Artem Litvinenko, Nilamani Behera +3
This chapter reviews the state of the art in mutually synchronized spin-torque and spin Hall nano-oscillator (STNO and SHNO) arrays. After briefly introducing the underlying physic…