Co-substitution of zirconium and neodymium on hyperfine interactions and AC susceptibility of SrFe12O19 nanohexaferrites
[ X ]
Tarih
2019
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Chinese Society of Rare Earths
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This study presents the influence of Zn and Nd co-substitution on structure, morphology, AC suscepti-bility and ZFC-FC magnetizations of Sr nanohexaferrites (NHFs), SrFe12x?Zn;Nd?xO19(0.0 x 1.0),which was produced by sol-gel approach. XRD powder patterns, scanning electron microscopy (SEM) andhigh-resolution transmission electron spectroscopy (HR-TEM) approve the synthesis of Sr M-type hex-aferrite. Mossbauer spectra show that Zn2?ions occupy 2b and 4f1sites while Nd3?ions locate at 2a,4f2and 12ksites. The magnetic properties of the produced Sr-NHFs were investigated also by ZFC-FCmagnetizations and AC susceptibility. According to theMFC-MZFCresults (between 2 and 400 K), noblocking temperature was detected which indicates the ferromagnetic (FM) behavior of NHFs. At lowertemperatures, a super-spin glass like behavior is discerned. The AC susceptibility indicates that themagnetic interactions are improved due to the inclusion of low content (x¼0.1) of Nd3?and Zn2?ionsinto the Sr-NHFs. However, with further increasing the Nd3?and Zn2?contents (x¼0.9), the magneticinteractions are weakened.
Açıklama
Anahtar Kelimeler
Sr Hexaferrites, Rare Earths, Mossbauer Spectroscopy, AC Susceptibility, ZFC-FC
Kaynak
Journal of Rare Earths
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
Sayı
Künye
Almessiere, M. A., Slimani, Y., Güngüneş, H., & Baykal, A. (2019). Co-substitution of zirconium and neodymium on hyperfine interactions and AC susceptibility of SrFe12O19 nanohexaferrites. Journal of Rare Earths, 1-9.
