Correlation Between Magnetic and Electric Properties in the Series of CoxZn1 –xFe2O4 Nanoparticles

• Published in: JETP letters Vol. 117; no. 10; pp. 765 - 768
• Main Authors: Petrov, D., Edelman, I., Thakur, A., Thakur, P., Sukhachev, A., Ovchinnikov, S.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-05-2023; Springer Nature B.V
• Subjects: Atomic; Biological and Medical Physics; Biophysics; Coercivity; Condensed Matter; Magnetic properties; Magnetic saturation; Molecular; Nanoparticles; Optical and Plasma Physics; Particle and Nuclear Physics; Physics; Physics and Astronomy; Quantum Information Technology; Room temperature; Solid State Physics; Spintronics
• ISSN: 0021-3640; 1090-6487
• DOI: 10.1134/S0021364023600969

Magnetization dependences of Co
x
Zn
1 –
x
Fe
2
O
4
nanoparticles (
, 0.1, 0.2, 0.3, 0.4, 0.5) synthesized with the citrate precursor technique on an external magnetic field and temperature are presented. Ferrimagnetic order in nanoparticles with
appeared at temperatures,
T
, exceeding room temperature, and in nanoparticles with
and 0.1 at
T
near 100 K. The saturation magnetization,
, remnant magnetization,
, and the coercive force,
, increase with
x
increase and the temperature decrease.
reached very high value:
of NPs with
equals to 106.6 emu/g at 100 K while, according to the literature data,
of stoichiometric bulk Co ferrite equals to 90 emu/g at 4.2 K. Correlations between concentration dependences of magnetic and electric properties has been revealed and explained qualitatively.