Influence of viscosity on dynamic magnetization of thermally blocked iron oxide nanoparticles characterized by a sensitive AC magnetometer

• Main Authors: Mohd Mawardi, Saari, Nazatul Shareena, Suhaimi, Mohd Herwan, Sulaiman, Nurul Akmal, Che Lah, Sakai, Kenji, Kiwa, Toshihiko, Tsukada, Keiji
• Format: Article
• Language: English
• Published: Springer Science+Business Media 2019
• Subjects: QC Physics; TP Chemical technology
• Online Access: http://umpir.ump.edu.my/id/eprint/24706/1/Influence%20of%20viscosity%20on%20dynamic%20magnetization%20of%20thermally%20blocked%20.pdf; http://umpir.ump.edu.my/id/eprint/24706/; https://doi.org/10.1007/s10948-019-5031-6; https://doi.org/10.1007/s10948-019-5031-6

In this work, we show that the viscosity of carrier liquid affects the dynamic magnetization of thermally blocked multi-core iron oxide nanoparticles. The core size of the nanoparticles was determined from the magnetization curve measured by a specially developed high-Tc SQUID magnetometer and calcu...