Features of magnetization behavior in the rare-earth intermetallic compound (Nd_0.5Ho_0.5)₂Fe₁₄B

The crystal-electric field parameters are determined for the (Nd_0.5Ho_0.5)₂Fe₁₄B compound by analyzing experimental magnetization curves obtained in magnetic fields up to 60 T. The values of the crystal-field parameters B² ₀, B⁴ ₀, B⁶ ₀, B⁴ ₄, B⁶ ₄ are 56.3, −73.2, −10.74, −8.9, 0 cm⁻¹ for Nd³⁺ ion and 312.38, −176.78, 89.2, −88.43, 0 cm⁻¹ for Ho³⁺ ion. The transition from the ferri- to the field-induced ferromagnetic state has been studied in detail.