AUTHOR=Mekuye Bawoke , Abera Birhanu TITLE=A theoretical model of high Curie temperature for N-type ferromagnetic diluted semiconductors based on iron-doped indium antimonide JOURNAL=Frontiers in Physics VOLUME=Volume 11 - 2023 YEAR=2023 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2023.1196391 DOI=10.3389/fphy.2023.1196391 ISSN=2296-424X ABSTRACT=Here in this paper, without using an external magnetic field, ferromagnetism on InFeSb n-type diluted magnetic semiconductors is studied up to 317.65 K. The spin wave model that the Heisenberg Hamiltonian translates into in the system has been developed using the green function formalism and the Holstein-Primakaff transformation estimate. The numbers of magnons, dispersion, Curie temperature, susceptibility, and specific heat capacity of the system have all been determined using the established model. The findings demonstrate that the ferromagnetic in 〖In〗_0.893 〖Fe〗_0.107 Sb has a curie temperature that is significantly higher than those found in prior investigations (317.65 K).