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Spin-Wave Amplification and Lasing Driven by Inhomogeneous Spin-Transfer Torques
(American Physical Society, 2019)
We show that an inhomogeneity in the spin-transfer torques in a metallic ferromagnet under suitable conditions strongly amplifies incoming spin waves. Moreover, at nonzero temperatures the incoming thermally occupied spin ...
Topological spin waves in the atomic-scale magnetic skyrmion crystal
(IOP, 2016)
We study the spin waves of the triangular skyrmion crystal that emerges in a two-dimensional spin lattice model as a result of the competition between Heisenberg exchange, Dzyalonshinkii-Moriya interactions, Zeeman coupling ...
Spin wave vortex from the scattering on Bloch point solitons
(Elsevier, 2015)
The interaction of a spin wave with a stationary Bloch point is studied. The topological non-trivial structure of the Bloch point manifests in the propagation of spin waves endowing them with a gauge potential that resembles ...
On the spin wave multifractal spectra in magnetic multilayers
(Elsevier, 1999-05)
The multifractal properties of spin wave bandwidths in quasiperiodic magnetic multilayers are studied. The profiles of the bandwidths are analyzed and the f(α) function is calculated for different values of the dimensionless ...
Quantum theory of spin waves in finite chiral spin chains
(American Physical Society, 2014)
We calculate the effect of spin waves on the properties of finite-size spin chains with a chiral spin ground
state observed on biatomic Fe chains deposited on iridium(001). The system is described with a Heisenberg
model ...
Spin wave modes of two magnetostatic coupled spin transfer torque nano-oscillators
(American Institute of Physics Inc., 2018)
A detailed analytical and numerical study of the spin wave modes of two nanopillar spin torque nano-oscillators coupled by magnetostatic interactions is presented under the macrospin approximation. Results show that the ...
On the spin wave multifractal spectra in magnetic multilayers
(Elsevier, 1999-05)
Local spin: A treatment beyond single determinant wave functions
(Elsevier Science, 2009-01)
This Letter describes a partitioning of the expectation value 〈 over(S, ^) 2 〉 of an N-electron system (molecule, ion, radical, etc.) into one- and two-center contributions. The proposal is valid for both independent and ...