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

Figure 15

Mössbauer spectra of Fe (64.94%) Ni (25.25%) Mn (9,83%) nanoparticles. (a) Nanoparticles with a core size of 𝐷=(5-8) nm; singlet, 𝑆₁=0.02; oxide doublet, 𝑆₂ = 0.16; two sextets: (I) 𝑆₃ = 0.25, 𝐻₃=34.0 T; 𝑆₄ = 0.13, 𝐻₄=29.5 T; (II) “sagged” line 𝑆₅ = 0.44. (b) Nanoparticles with a core size of D = (10–15) nm; singlet, 𝑆₁ = 0.12; oxide doublet, 𝑆₂ = 0.12; two sextets: (I) 𝑆₃ = 0.24, 𝐻₃=34.5 T; (II) 𝑆₄ = 0.13, 𝐻₄=29.5 T; “sagged” line 𝑆₅ = 0.39.