Magnetization reversal processes of nanostructured PrFeB alloys

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Magnetization reversal processes of nanostructured PrFeB alloys. / Maltseva, Viktoria ; Andreev, Sergey ; Selezneva, Nadezhda et al.
In: Journal of Magnetism and Magnetic Materials, Vol. 589, 171585, 2024.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{2645c8ea1f294da3aa490cb19b9e65cd,

title = "Magnetization reversal processes of nanostructured PrFeB alloys",

abstract = "The paper considers the high-coercivity state of the melt-spun PrFeB alloys with different phase composition: the main Pr2Fe14B phase grains separated by the paramagnetic layers, single-phase state (Pr2Fe14B grains only), and combination of Pr2Fe14B and α-Fe phase grains. The phase composition and microstructure of the alloys, as well as their magnetic properties in the temperature range of 2–300 K are given. To establish the prevailing mechanism of the high-coercivity state, magnetometric techniques were used, including the study of the reversible magnetic susceptibility, and simulations by the finite difference method. The simulations of the magnetization reversal of these alloys demonstrate the complexity of this processes, which go beyond simple nucleation or pinning, and cannot be described in the framework of the Kneller-Hawig model. Models of magnetization reversal of the alloys under study are proposed. The presence and composition of the intergranular layer has a significant effect on the mechanism of the high-coercivity state.",

author = "Viktoria Maltseva and Sergey Andreev and Nadezhda Selezneva and Oksana Golovnia and Aleksey Volegov",

note = "The authors would like to thank Dr. I.V. Soldatov and K. Berger from the Leibniz Institute for Solid State and Materials Research Dresden for their research on microstructure. This work was financially supported by Russian Science Foundation Grant Number 21-72-10104. The simulation was carried out on the supercomputer “Uran” of the Institute of Mathematics and Mechanics, Ural Branch of the Russian Academy of Sciences. The computational time was supported from Magnet 122021000034-9.",

year = "2024",

doi = "10.1016/j.jmmm.2023.171585",

language = "English",

volume = "589",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Magnetization reversal processes of nanostructured PrFeB alloys

AU - Maltseva, Viktoria

AU - Andreev, Sergey

AU - Selezneva, Nadezhda

AU - Golovnia, Oksana

AU - Volegov, Aleksey

N1 - The authors would like to thank Dr. I.V. Soldatov and K. Berger from the Leibniz Institute for Solid State and Materials Research Dresden for their research on microstructure. This work was financially supported by Russian Science Foundation Grant Number 21-72-10104. The simulation was carried out on the supercomputer “Uran” of the Institute of Mathematics and Mechanics, Ural Branch of the Russian Academy of Sciences. The computational time was supported from Magnet 122021000034-9.

PY - 2024

Y1 - 2024

N2 - The paper considers the high-coercivity state of the melt-spun PrFeB alloys with different phase composition: the main Pr2Fe14B phase grains separated by the paramagnetic layers, single-phase state (Pr2Fe14B grains only), and combination of Pr2Fe14B and α-Fe phase grains. The phase composition and microstructure of the alloys, as well as their magnetic properties in the temperature range of 2–300 K are given. To establish the prevailing mechanism of the high-coercivity state, magnetometric techniques were used, including the study of the reversible magnetic susceptibility, and simulations by the finite difference method. The simulations of the magnetization reversal of these alloys demonstrate the complexity of this processes, which go beyond simple nucleation or pinning, and cannot be described in the framework of the Kneller-Hawig model. Models of magnetization reversal of the alloys under study are proposed. The presence and composition of the intergranular layer has a significant effect on the mechanism of the high-coercivity state.

AB - The paper considers the high-coercivity state of the melt-spun PrFeB alloys with different phase composition: the main Pr2Fe14B phase grains separated by the paramagnetic layers, single-phase state (Pr2Fe14B grains only), and combination of Pr2Fe14B and α-Fe phase grains. The phase composition and microstructure of the alloys, as well as their magnetic properties in the temperature range of 2–300 K are given. To establish the prevailing mechanism of the high-coercivity state, magnetometric techniques were used, including the study of the reversible magnetic susceptibility, and simulations by the finite difference method. The simulations of the magnetization reversal of these alloys demonstrate the complexity of this processes, which go beyond simple nucleation or pinning, and cannot be described in the framework of the Kneller-Hawig model. Models of magnetization reversal of the alloys under study are proposed. The presence and composition of the intergranular layer has a significant effect on the mechanism of the high-coercivity state.

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85179032485

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=001133417300001

U2 - 10.1016/j.jmmm.2023.171585

DO - 10.1016/j.jmmm.2023.171585

M3 - Article

VL - 589

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

M1 - 171585

ER -

ID: 49812801