Theoretical Study of Temperature Dependence of Spin Susceptibility in Anisotropic Itinerant Ferromagnets

Abstract

We developed a framework for directly calculating the spin susceptibility of anisotropic itinerant ferromagnets in the full temperature range within the coherent potential approximation in the disordered local moment picture. As a test of our formulation, we demonstrate the computation for the temperature ($T$) dependence of the spin susceptibility for Rashba-type ferromagnets with the Curie temperature $T_{\mathrm{C}}$. In a certain parameter, we found that the inverse transverse susceptibility $1/{\chi }_{\perp }\simeq const.$ for $T<T_{\mathrm{C}}$ and $1/{\chi }_{\perp }\propto T-T_{\mathrm{C}}$ for $T>T_{\mathrm{C}}$, which reflects characteristics of itinerant ferromagnets including a spin-orbit interaction.

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Cited by in corpus (2)

• Finite-temperature second-order perturbation analysis of magnetocrystalline anisotropy energy of L10-type ordered alloys
• Temperature Dependence of Magnetocrystalline Anisotropy in Itinerant Ferromagnets