Size Effect and Temperature of Magnetic Ordering in ε-Fe2O3 Nanoparticles Full article
| Journal |
Journal of Superconductivity and Novel Magnetism
ISSN: 1557-1939 , E-ISSN: 1557-1947 |
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| Output data | Year: 2025, Volume: 38, Number: 4, Article number : 184, Pages count : 8 DOI: 10.1007/s10948-025-07025-3 | ||||
| Tags | ε-Fe2O3 nanoparticles · Finite size efect · Néel temperature | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 24-12-20011 |
Abstract:
The magnetization of a series of samples containing ε-Fe2O3 nanoparticles of different average sizes (approximately 4‒11 nm) has been measured in the temperature range of 300–550 K, which includes the region of a high-temperature magnetic transition. The observed Néel temperature drop has been attributed to the manifestation of the size effect: from ~ 500 K for fairly coarse (> 10 nm) particles to ~ 450 K for particles of ~ 5 nm in size. The obtained particle size dependence of the Néel temperature has been analyzed within the scaling law for critical phenomena in finite-size systems.
Cite:
Balaev D.A.
, Semenov S.V.
, Dubrovskiy A.A.
, Knyazev Y.V.
, Kirillov V.L.
, Shaykhutdinov K.A.
, Martyanov O.N.
Size Effect and Temperature of Magnetic Ordering in ε-Fe2O3 Nanoparticles
Journal of Superconductivity and Novel Magnetism. 2025. V.38. N4. 184 :1-8. DOI: 10.1007/s10948-025-07025-3 WOS Scopus
Size Effect and Temperature of Magnetic Ordering in ε-Fe2O3 Nanoparticles
Journal of Superconductivity and Novel Magnetism. 2025. V.38. N4. 184 :1-8. DOI: 10.1007/s10948-025-07025-3 WOS Scopus
Dates:
| Submitted: | Apr 22, 2025 |
| Accepted: | Jul 11, 2025 |
| Published print: | Jul 18, 2025 |
| Published online: | Jul 18, 2025 |
Identifiers:
| Web of science: | WOS:001531973700001 |
| Scopus: | 2-s2.0-105011067581 |
Citing:
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