Manganese/yttrium codoped strontium nanohexaferrites: Evaluation of magnetic susceptibility and mossbauer spectra
Yükleniyor...
Dosyalar
Tarih
2019
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
MDPI AG
Erişim Hakkı
Attribution 4.0 International (CC BY 4.0)
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
Özet
Abstract: Manganese (Mn)- and yttrium (Y)-substituted Sr-nanohexaferrites (MYSNHFs) of composition Sr1_xMnxFe12_xYxO19 (with 0.0 ? x ? 0.5) were prepared by citrate sol-gel autocombustion method. As-prepared MYSNHFs were characterized via diverse analytical techniques to determine the influence of Mn and Y cosubstitution on their microstructures and magnetic properties. 57Fe Mössbauer spectra of the MYSNHFs were used to evaluate the variation in the line width, isomer shift, quadrupole splitting, and hyperfine magnetic field values. It was shown that the dopant ions could preferentially occupy the 12k, 4f2, and 2b sites. Furthermore, the observed shift in the blocking temperatures of the studied MYSNHFs towards lower values with rising Mn2+ and Y3+ contents was attributed to the overall particles size reduction. Meanwhile, the AC susceptibility of the proposed MYSNHFs revealed that the magnetic interactions were weakened with the increase in dopant contents which was ascribed to the replacement of both Sr2+ and Fe3+ ions by the Mn2+ and Y3+ dopants.
Açıklama
Anahtar Kelimeler
Dopants, Hyperfine Interactions, Magnetic Susceptibility, MYSNHFs, Mössbauer Spectra
Kaynak
Nanomaterials
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
9
Sayı
1
Künye
Almessiere, M., Slimani, Y., Güngüneş, H., Baykal, A., Trukhanov, S. V., Trukhanov, A. V. (2019). Manganese/yttrium codoped strontium nanohexaferrites: evaluation of magnetic susceptibility and mossbauer spectra. Nanomaterials, 9(1), 24.
