Magnetic Properties of Nanoparticles Surface-Modified with Oleic Acid

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Published: Nov 2, 2026
DOI: https://doi.org/10.12693/APhysPolA.150.S77
Keywords:
magnetic nanoparticles, superparamagnetism, X-ray diffraction (XRD), Mössbauer spectroscopy 

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K. Winiarczyk
Lublin University of Technology, Faculty of Environmental Engineering and Energy, Nadbystrzycka 40B, 20-618 Lublin, Poland
A. Surowiec
Lublin University of Technology, Faculty of Management, Nadbystrzycka 38, 20-618 Lublin, Poland
V.I. Mitsiuk
State Scientific and Production Association Scientific and Practical Center for Materials Science, National Academy of Sciences of Belarus, 220072 Minsk, Belarus
Z. Surowiec
Maria Curie-Sklodowska University, Institute of Physics, M. Curie-Sklodowskiej 1 Sq., 20-031 Lublin, Poland

Abstract

Oleic-acid-modified magnetite nanoparticles were synthesised by coprecipitation and characterised using structural, spectroscopic, and magnetic methods. X-ray diffraction and transmission electron microscopy confirmed magnetite cores with an average size of approximately 11.5 nm, while Fourier transform infrared spectroscopy demonstrated the chemisorption of oleic acid. Mössbauer spectroscopy revealed superparamagnetic relaxation and collective magnetic interactions. Low coercivity and a blocking temperature of about 160 K indicate predominantly superparamagnetic behaviour at room  temperature.


 

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How to Cite
[1]
K. Winiarczyk, A. Surowiec, V. Mitsiuk, and Z. Surowiec, “Magnetic Properties of Nanoparticles Surface-Modified with Oleic Acid”, Acta Phys. Pol. A, vol. 150, no. 1-3, p. S77, Nov. 2026, doi: 10.12693/APhysPolA.150.S77.
Issue
Vol. 150 No. 1-3 (2026): Selected papers presented at the 14th Polish Nationwide Mössbauer Spectroscopy Seminar (OSSM'2026)
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