Enhancement of specific absorption rate in CoO.7ZnO.3Fe2O4 and CoO.5ZnO.5Fe2O4 composite nanoparticles

P. H. Nam; T. N. Bach; N. H. Nam; N. V. Quynh; N. X. Truong; D. H. Manh; L. H. Nguyen; P. T. Phong

doi:10.15625/2525-2518/59/1/15118

Enhancement of specific absorption rate in CoO.7ZnO.3Fe2O4 and CoO.5ZnO.5Fe2O4 composite nanoparticles

P. H. Nam, T. N. Bach, N. H. Nam, N. V. Quynh, N. X. Truong, D. H. Manh, L. H. Nguyen, P. T. Phong

Author affiliations

Authors

P. H. Nam Institute of Materials Science, Vietnam Academy of Science and Technology(VAST),18 Hoang Quoc Viet, Ha Noi, Viet Nam
T. N. Bach Institute of Materials Science, Vietnam Academy of Science and Technology (VAST),18 Hoang Quoc Viet, Ha Noi, Viet Nam
N. H. Nam Institute of Materials Science, Vietnam Academy of Science and Technology (VAST),18 Hoang Quoc Viet, Ha Noi, Viet Nam
N. V. Quynh University of Science and Technology of Hanoi (USTH), VAST, 18 Hoang Quoc Viet, Ha Noi, Viet Nam
N. X. Truong Institute of Materials Science, Vietnam Academy of Science and Technology (VAST),18 Hoang Quoc Viet, Ha Noi, Viet Nam
D. H. Manh Institute of Materials Science, Vietnam Academy of Science and Technology (VAST),18 Hoang Quoc Viet, Ha Noi, Viet Nam
L. H. Nguyen Laboratory of Magnetism and Magnetic Materials, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City, Viet Nam
P. T. Phong Laboratory of Magnetism and Magnetic Materials, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City, Viet Nam

DOI:

https://doi.org/10.15625/2525-2518/59/1/15118

Keywords:

specific absorption rate, composite nanoparticles, exchange coupling

Abstract

We report the advantage of the exchange coupling between a magnetically soft (MnFe₂O₄) and magnetically hard (Co_0.7Zn_0.3Fe₂O₄ and Co_0.5Zn_0.5Fe₂O₄) magnetic phase to increase the specific absorption rate (SAR) in magnetic inductive heating. All samples were synthesized by hydrothermal method. While the saturation magnetization (M_s) of two composite nanoparticles is approximately 1.1 times higher the M_s of single-component, the SAR is more 2 times than those values of single-component.

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Published

15-01-2021

How to Cite

[1]

P. H. Nam, “Enhancement of specific absorption rate in CoO.7ZnO.3Fe2O4 and CoO.5ZnO.5Fe2O4 composite nanoparticles”, Vietnam J. Sci. Technol., vol. 59, no. 1, pp. 30–39, Jan. 2021.

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Issue

Vol. 59 No. 1 (2021)

Section

Materials

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