Manganese/Yttrium Codoped Strontium Nanohexaferrites: Evaluation of Magnetic Susceptibility and Mossbauer Spectra

Munirah Abdullah Almessiere; Yassine Slimani; Hakan Güngüneş; Abdulhadi Baykal; S V Trukhanov; A V Trukhanov

doi:10.3390/nano9010024

Manganese/Yttrium Codoped Strontium Nanohexaferrites: Evaluation of Magnetic Susceptibility and Mossbauer Spectra

Nanomaterials (Basel). 2018 Dec 25;9(1):24. doi: 10.3390/nano9010024.

Authors

Munirah Abdullah Almessiere^{1

2}, Yassine Slimani³, Hakan Güngüneş⁴, Abdulhadi Baykal⁵, S V Trukhanov^{6

7

8}, A V Trukhanov^{9

10

11}

Affiliations

¹ Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia. malmessiere@iau.edu.sa.
² Department of Nano-Medicine Research, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia. malmessiere@iau.edu.sa.
³ Department of Biophysics, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia. yaslimani@iau.edu.sa.
⁴ Department of Physics, Hitit University, Çevre Yolu Bulvarı-Çorum 19030, Turkey. Gungunes@gmail.com.
⁵ Department of Nano-Medicine Research, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia. abaykal@iau.edu.sa.
⁶ Scientific-Practical Materials Research Centre NAS of Belarus, 19 P. Brovki Street, 220072 Minsk, Belarus. Trukhanov@gmail.com.
⁷ Department of Electronic Materials Technology, National University of Science and Technology MISiS, Leninsky Prospekt, 4, Moscow 119049, Russia. Trukhanov@gmail.com.
⁸ Laboratory of Crystal Growth, South Ural State University, Lenin Prospect, 76, Chelyabinsk 454080, Russia. Trukhanov@gmail.com.
⁹ Scientific-Practical Materials Research Centre NAS of Belarus, 19 P. Brovki Street, 220072 Minsk, Belarus. truhanov86@mail.ru.
¹⁰ Department of Electronic Materials Technology, National University of Science and Technology MISiS, Leninsky Prospekt, 4, Moscow 119049, Russia. truhanov86@mail.ru.
¹¹ Laboratory of Crystal Growth, South Ural State University, Lenin Prospect, 76, Chelyabinsk 454080, Russia. truhanov86@mail.ru.

Abstract

Manganese (Mn)- and yttrium (Y)-substituted Sr-nanohexaferrites (MYSNHFs) of composition Sr_1-xMn_xFe_12-xY_xO₁₉ (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.

Keywords: MYSNHFs; Mössbauer spectra; dopants; hyperfine interactions; magnetic susceptibility.