111 citations · 446 across the 13 of their papers we have counts for
6 papers · 1 filter
First-principles calculation of spin-orbit torque in a Co/Pt bilayer
K. D. Belashchenko, Alexey A. Kovalev, M. van Schilfgaarde
The angular dependence of spin-orbit torque in a disordered Co/Pt bilayer is calculated using a first-principles non-equilibrium Green's function formalism with an explicit superce…
Valley-dependent Lorentz force and Aharonov-Bohm phase in strained graphene p-n junction
Sanjay Prabhakar, Rabindra Nepal, Roderick Melnik +1
Veselago lens focusing in graphene p-n junction is promising for realizations of new generation electron optics devices. However, the effect of the strain-induced Aharonov-Bohm int…
Boundary twists, instabilities, and creation of skyrmions and antiskyrmions
Aldo Raeliarijaona, Rabindra Nepal, Alexey A. Kovalev
We formulate and study the general boundary conditions dictating the magnetization profile in the vicinity of an interface between magnets with dissimilar properties. Boundary twis…
Duality and free energy analyticity bounds for few-body Ising models with extensive homology rank
Yi Jiang, Ilya Dumer, Alexey A. Kovalev +1
We consider pairs of few-body Ising models where each spin enters a bounded number of interaction terms (bonds), such that each model can be obtained from the dual of the other aft…
Skyrmions and antiskyrmions in quasi-two-dimensional magnets
Alexey A. Kovalev, Shane Sandhoefner
A stable skyrmion, representing the smallest realizable magnetic texture, could be an ideal element for ultra-dense magnetic memories. Here, we review recent progress in the field…
Numerical and analytical bounds on threshold error rates for hypergraph-product codes
Alexey A. Kovalev, Sanjay Prabhakar, Ilya Dumer +1
We study analytically and numerically decoding properties of finite rate hypergraph-product quantum LDPC codes obtained from random (3,4)-regular Gallager codes, with a simple mode…