Structure and Magnetic Properties of Aerosol Nanoparticles of Fe and Its Alloys

Figure 49

Effect of value ▵ on HFD shape extracted from 4.2 K Mössbauer spectrum for small Fe particles. (a) 0.05 T (𝜆 = 0, 𝐻_oi = 33.3 T, l = 0.36 mm⋅s⁻¹; HR = 0.8414, 𝜒²= 1.099); (b) ▵ = 0.15 T (𝜆 = 0, 𝐻_oi = 30.3 T, l = 0.34 mm⋅s⁻¹; HR = 0.8204, 𝜒²= 1.071); (c) ▵ = 0.5 T (𝜆 = 0, 𝐻_oi = 22.0 T, l = 0.33 mm⋅s⁻¹; HR = 0.7795, 𝜒² = 1.012); (d) ▵ = 0.8 T (𝜆 = 0, 𝐻_oi = 15.0 T, l = 0.31 mm⋅s⁻¹; HR = 0.7593, 𝜒²=0.9917).