51 citations · 110 across the 6 of their papers we have counts for
6 papers
Magnon Polarons induced by a magnetic field gradient
N. Vidal-Silva, E. Aguilera, A. Roldán-Molina +2
In this work, we report the theoretical possibility of generating magnon polaron excitations through a space-varying magnetic field. The spatial dependence of the magnetic field in…
Symmetry and localization properties of defect modes in magnonic superlattices
Rodolfo A. Gallardo, Tobias Schneider, Alejandro Roldán-Molina +5
Symmetry and localization properties of defect modes of a one-dimensional bi-component magnonic superlattice are theoretically studied. The magnonic superlattice can be seen as a p…
Spin-wave spectra in periodically surface-modulated ferromagnetic thin films
R. A. Gallardo, M. Langer, A. Roldán-Molina +4
This article presents theoretical results for the dynamic response of periodically surface-modulated ferromagnetic thin films. For such system, the role of the periodic dipolar fie…
Dynamical quenching of tunneling in molecular magnets
María José Santander, Alvaro S. Nunez, A. Roldán-Molina +1
It is shown that a single molecular magnet placed in a rapidly oscillating magnetic field displays the phenomenon of quenching of tunneling processes. The results open a way to man…
Quantum fluctuations stabilize Skyrmion textures
A. Roldán-Molina, M. J. Santander, Á. S. Núñez +1
Here we show that the zero point energy associated to the quantum spin fluctuations of a non- collinear spin texture produce Casimir-like magnetic fields. We study the effect of th…
Quantum theory of spin waves in finite chiral spin chains
A. Roldán-Molina, M. J. Santander, Á. S. Núñez +1
We calculate the effect of spin waves on the properties of finite size spin chains with a chiral spin ground state observed on bi-atomic Fe chains deposited on Iridium(001). The sy…