2023
DOI: 10.1590/0001-3765202320230408
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Magnon-lattice propagation in a Morse chain: the role played by the spin-lattice interaction and the initial condition

MARCONI SILVA SANTOS JUNIOR,
MESSIAS DE OLIVEIRA SALES,
FRANCISCO ANACLETO BARROS FIDELIS DE MOURA

Abstract: Our research focuses on studying magnon dynamics in a Morse lattice. We used a Heisenberg Hamiltonian to represent the spins while a Morse formalism governed the lattice deformations. The strength of the spin-spin interaction depended on the distance between neighboring spins, which followed an exponential pattern. We explored various initial conditions for the lattice and spin wave function and observed how they affected the magnon-lattice propagation. Additionally, we analyzed the impact of the parameter tha… Show more

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