25 citations · 36 across the 9 of their papers we have counts for
10 papers
Three-Dimensional Shankar Skyrmions in Frustrated Antiferromagnets
Vladyslav M. Kuchkin, Ricardo Rama-Eiroa, Carlos Saji +2
We formulate a continuum theory for three-dimensional (3D) Shankar skyrmions in frustrated chiral antiferromagnets (AFs) and derive the conditions for metastable finite-size $π_3(S…
Magnon-dislon hybridization in magnetic insulators
Carlos Saji, Nicolas Vidal-Silva, Roberto E. Troncoso
Spin dynamics in ordered magnets with topological lattice defects is investigated. Using fracton--elasticity duality, we develop an effective field theory of magnons coupled to qua…
Quantum geometry, localization, and topological bounds of spin fluctuations
Carlos Saji, Roberto E. Troncoso
We study how topological crystalline defects--dislocations--reshape the real-space quantum geometric tensor and act as tunable sources of quantum geometry. We show that dislocation…
Magnetic topological textures in nonorientable surfaces
Carlos Saji, Mario A. Castro, Vagson L. Carvalho-Santos +3
Topological magnetic textures confined to two-dimensional (2D) non-orientable manifolds exhibit behaviors absent in planar systems. We investigate bimerons on Möbius surfaces and s…
Static and Dynamics of Twisted Skyrmion Tubes in Frustrated Magnets
Carlos Saji, Eduardo Saavedra, Vagson L. Carvalho-Santos +2
Stable three-dimensional topological skyrmion structures in frustrated magnets are investigated. The texture exhibits a helicoid pattern along the vertical direction, described by…
Elementary theory of Magnetoferrons: bringing magnons and ferrons together in multiferroic systems
Mario Castro, Carlos Saji, Guidobeth Saez +3
The collective excitations of a multiferroic material are analyzed. We show that these excitations also exhibit magnetoelectric behavior, leading to the hybridization of magnons ,o…
Magnonics along the wall in Bimeron Chain Domain Walls
Carlos Saji, Eduardo Saavedra, Roberto E. Troncoso +3
We demonstrate that domain walls built from bimeron chains (bc-DW) in two-dimensional systems constitute a spontaneously assembled medium that holds magnonic excitations along its…
Topological magnonic dislocations modes
Carlos Saji, Nicolas Vidal-Silva, Alvaro S. Nunez +1
Spin fluctuations in two-dimensional (2D) ferromagnets in the presence of crystalline lattice dislocations are investigated. We show the existence of topologically protected non-pr…
Quantum spin fluctuations and the stability of atomically-sized Bloch points
Alonso Tapia, Carlos Saji, Alejandro Roldan +1
We reveal the role of the spin variables' zero-point fluctuations (ZPFs) on the stability of Bloch point (BP) singularities. As topological solitons, BPs are important in topologic…
Magnonic Hall Effect and Magnonic Holography of Hopfions
Carlos Saji, Roberto E. Troncoso, Vagson L. Carvalho-Santos +2
Hopfions are localized and topologically non-trivial magnetic configurations that have received considerable attention in recent years. Through a micromagnetic approach, we analyze…