Open AccessEnhancement of specific absorption rate in CoO.7ZnO.3Fe2O4 and CoO.5ZnO.5Fe2O4 composite nanoparticles
Author(s) -
Phạm Hồng Nam,
Ta Ngoc Bach,
Nguyễn Hoài Nam,
Nguyen Van Quynh,
Nhat Truong,
Do Hung Manh,
Vuong Van Nguyen,
P.T. Phong
Publication year - 2021
Publication title -
vietnam journal of science and technology/science and technology
Language(s) - English
Resource type - Journals
eISSN - 2815-5874
pISSN - 2525-2518
DOI - 10.15625/2525-2518/59/1/15118
Subject(s) - specific absorption rate , composite number , hydrothermal circulation , absorption rate , materials science , magnetization , absorption (acoustics) , nanoparticle , saturation (graph theory) , magnetometer , phase (matter) , analytical chemistry (journal) , nuclear magnetic resonance , chemistry , chemical engineering , magnetic field , nanotechnology , composite material , chromatography , physics , telecommunications , mathematics , quantum mechanics , combinatorics , computer science , antenna (radio) , engineering , organic chemistry
We report the advantage of the exchange coupling between a magnetically soft (MnFe2O4) and magnetically hard (Co0.7Zn0.3Fe2O4 and Co0.5Zn0.5Fe2O4) magnetic phase to increase the specific absorption rate (SAR) in magnetic inductive heating. All samples were synthesized by hydrothermal method. While the saturation magnetization (Ms) of two composite nanoparticles is approximately 1.1 times higher the Ms of single-component, the SAR is more 2 times than those values of single-component.