Alternating superlattice textures in driven nanomagnets
type: Item
instance of: scholarly article
title: Alternating superlattice textures in driven nanomagnets
zbMATH Open document ID: 1471.82030
author: Alejandro O. Leon
author: David Laroze
author: M. G. Clerc
author: Ana M. Cabanas
published in: Communications in Nonlinear Science and Numerical Simulation
publication date: 2020-10-07T00:00:00Z
full work available at URL: http://hdl.handle.net/10533/232238
review text: In this present paper, alternating superlattice textures in nanomagnets driven by spin-transfer torques are studied. The authors deal with two states, superhexagons and square-like patterns. They show that the alternating superhexagons emerge through a homoclinic bifurcation. The emergence of dynamical patterns by means of low-dimensional bifurcations is explained. A reduced representation of the superhexagon in terms of a Galerkin expansion is obtained. The authors show that the spin-transfer torque is the dominant dissipation mechanism of alternating superlattices. Then, an oscillatory square-like state that emerges through an Andronov-Hopf instability is investigated. The authors plot the temporal evolution of the average magnetization, magnetic energy, and average resistance for some given values. In an appendix, the authors explain the Galerkin expansion of the magnetization equations.
reviewed by: Hasan Akin
Mathematics Subject Classification ID: 82D40
Mathematics Subject Classification ID: 82B20
Mathematics Subject Classification ID: 35R09
Mathematics Subject Classification ID: 35B05
Mathematics Subject Classification ID: 35B36
Mathematics Subject Classification ID: 35Q82
zbMATH DE Number: 7257344
zbMATH Keywords: nonlinear dynamics
zbMATH Keywords: spatiotemporal patterns
zbMATH Keywords: secondary instabilities
MaRDI profile type: Publication
Wikidata QID: Q58163771
OpenAlex ID: W2510404767
cites work: Pattern formation outside of equilibrium
cites work: Pattern Formation
cites work: Q3623251
cites work: The fascinating world of the Landau–Lifshitz–Gilbert equation: an overview
cites work: NONVARIATIONAL ISING–BLOCH TRANSITION IN PARAMETRICALLY DRIVEN SYSTEMS
cites work: PARAMETRICALLY DRIVEN INSTABILITY IN QUASI-REVERSAL SYSTEMS
cites work: Soliton-antisoliton interaction in a parametrically driven easy-plane magnetic wire
cites work: Parametrically excited solitary waves
DOI: 10.1016/J.CNSNS.2016.09.001
description: scientific article; zbMATH DE number 7257344