Dipole-exchange spin waves in Fibonacci magnetic multilayers
J. Milton Pereira, R. N. Costa Filho
Abstract
A microscopic model is employed to calculate the spectrum of spin waves in quasiperiodic magnetic multilayers in the dipole-exchange regime. Results are presented for structures in which thin ferromagnetic films are separated by non-magnetic spacers following a Fibonacci sequence and extend previous magnetostatic calculations. The results show the splitting of the frequency bands and the mode mixing caused by the dipolar interaction between the films as a function of spacer thickness, as well as the fractal aspect of the spectrum induced by the non-periodic aspect of the structure.
Create a lesson
Related papers
Admittance extraction of quantum dot arrays for charge sensing
Conor Power, Mathieu Moras, Andrii Sokolov et al.
Probing quantum nonlinear phononics in multilayer graphene with time-resolved Raman scattering
Jakob Dolgner, Michael Rübhausen, Dirk Manske
Emergence of Nonlocal Hydrodynamics in Many-Body Radiative Heat Transport
Mauricio Gomez Viloria, Florian Herz, Riccardo Messina et al.
Symmetry Condition and Mechanism for the Anomalous Hall Effect in Odd-Parity Magnets
Xun-Jiang Luo, Su-Qi Zhang, Yi-Dong Liu et al.
Wilson-loop formulations of the spin polarization and the spin Chern number
Kiminori Hattori, Ryuki Uchida
Chirally pinned flat bands, helical minibands, and bias-controlled topology of Jackiw-Rebbi states in a periodically modulated Dirac mass texture
Tao Zhou