A linear spin-wave theory for LiNiPO4 utilizing a nonextensive distribution

• Autores: R. Navarro, F. A., V. Flores, J. F., Torres Tapia, E. C.
• Formato: artículo
• Fecha de Publicación: 2012
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/8692
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/fisica/article/view/8692
• Nivel de acceso: acceso abierto
• Materia: Ondas de espín; difracción de neutrones; materiales magnéticos; mecánica estadística cuántica.; Spin waves; neutron diffraction; magnetic materials; quantum statistical mechanics.

This work is concerned about the lithium-nickel phosphate, LiNiPO4, a very important magneticelectric material due to its promising applications to tailor the next-generation lithium-nickel batteries. In the Hamiltonian operator, it is considered the interactions of Ni2+, the unique magnetic ion in the phosphate. Specifically, it is taken into account the Heisenberg interactions along with the single-ion anisotropy term. Furthermore, the utilization of the Holstein-Primakoff formalism leads to spin-wave scattering. To investigate the spin-wave intensities, we utilize the nonextensive probability distribution what originates some bulges in the curves of the intensities.