Magnetic hysteresis properties of nanocrystalline (Nd,Ho)-(Fe,Co)-B alloy after melt spinning, severe plastic deformation and subsequent heat treatment

Терешина, И. С.; Pelevin, Ivan A.; Терешина, Е.А.; Бурханов, Г. С.; Rogacki, K.; Miller, M.; Kudrevatykh, N. V.; Markin, P.E.; Волегов, А. С.; Гречишкин, Р. М.; Добаткин, С. В.; Schultz, L.

doi:10.1016/j.jallcom.2016.04.228

Cited by 39 publications

(10 citation statements)

References 32 publications

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“…Comparing Figure 2 and 3 we note that as

D'

becomes more negative, the transition to a single hysteresis loop occurs at a lower temperature. This effect has also been observed in the study by Bouda et al [ 43 ] The presence of multiple magnetic hysteresis has been observed in various magnetic nanostructures, as evidenced by the works of Humphrey on multiple areas of magnetic bistability in the topological ferrimagnet

{[Co}_{3} {{(NC}_{5} {normalH}_{3} {{(CO}_{2})}_{2} ‐ 2, 5)}_{2} {(μ_{3} ‐OH)}_{2}

(

{{OH}_{2})}_{2}

], [ 65 ] magnetic hysteresis properties of nanocrystalline (Nd,Ho)–(Fe,Co)–B alloy, [ 66 ] thermal and magnetic properties of ternary mixed Ising nanoparticles, [ 67 ] and the hexagonal type Ising nanowire. [ 68 ] This magnetic behavior has also been seen in experimental investigations on the nanowires CoNiP/Cu and FeGa/Py, [ 69 ] the nanoparticle

{FePt/Fe}_{3}

{normalO}_{4}

, [ 70 ] and in theoretical studies.…”

Section: Resultsmentioning

confidence: 99%

Mixed Spin‐(3/2,7/2) Ising‐Type Ferrimagnet: Monte Carlo–Mean Field Treatment

Espriella

Karimou

Buendı́a

2021

Physica Status Solidi (b)

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Mean field and Monte Carlo simulations techniques are applied to study the behavior of a mixed Ising spin model in a square lattice where spins 7/2 are located in alternating sites with spins 3/2. There is an antiferromagnetic interaction between nearest neighbors, ferromagnetic interactions between next-nearest neighbors, crystal fields, and a magnetic external field. The role of the different interactions in the magnetic behavior of the system is explored. It is found that depending on the combination of parameters in the Hamiltonian this system presents multiple hysteresis loops, exchange bias, compensation temperatures, and discontinuous magnetizations. The results are compared with previous studies that do not include the ferromagnetic next-nearest neighbor interactions and found that they can have a strong effect in the magnetic behavior of the system.

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“…Comparing Figure 2 and 3 we note that as

D'

{[Co}_{3} {{(NC}_{5} {normalH}_{3} {{(CO}_{2})}_{2} ‐ 2, 5)}_{2} {(μ_{3} ‐OH)}_{2}

(

{{OH}_{2})}_{2}

{FePt/Fe}_{3}

{normalO}_{4}

, [ 70 ] and in theoretical studies.…”

Section: Resultsmentioning

confidence: 99%

Mixed Spin‐(3/2,7/2) Ising‐Type Ferrimagnet: Monte Carlo–Mean Field Treatment

Espriella

Karimou

Buendı́a

2021

Physica Status Solidi (b)

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show abstract

“…There is some theoretical and experimental evidence for this multiple‐loop behavior in complex mixed magnetic moment structures, for example in the nanocrystalline alloy (Nd,Ho)‐(Fe,Co)‐B, [ 80 ] in the magnetic bistability of the ferrimagnetic compound

[{Co}_{3} {({NC}_{5} {normalH}_{3} {({CO}_{2})}_{2} - 2,5)}_{2} {(μ_{3} - OH)}_{2} {({OH}_{2})}_{2}]

, [ 81 ] and in the magnetic properties of the hexagonal‐type Ising nanowire, [ 82 ] as well as in the investigations of Zheng et al [ 83 ] and Lupu et al [ 32 ] of

{FePt/Fe}_{3} O_{4}

and CoNip/Cu and FeGa/Py nanostructures, respectively.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

Hysteresis and Double‐Spin Compensation Behaviors in a Ferro‐Ferrimagnetic Model of High Half‐Integer Spins

Madera

Espriella

Burgos

2023

Physica Status Solidi (b)

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Herein, thermomagnetic properties of a ferro‐ferrimagnetic system with magnetic moments of values , and alternating on a square lattice, are investigated. These properties are framed in hysteresis, double‐spin compensation, and discontinuous behavior of the system. Through Monte Carlo simulations, the temperature dependence of the magnetization and magnetic susceptibility of the system for zero and nonzero values of an applied external magnetic field are analyzed. The hysteresis behavior of the model for different temperature values is also studied. It is found that the system experiences double‐spin compensation and multiple hysteresis loops when it is subjected to different values of single‐ion anisotropy and magnetic fields. The increase in the strength of the magnetic field generates discontinuities in the magnetization, and the inversion of its polarity destroys the compensation points. Finally, a phase diagram is presented with the critical, spin compensation, and discontinuous temperatures in terms of the magnetic and anisotropic fields for the ferri‐ and ferromagnetic cases. The results are compared with a recent investigation of this system that does not include the antiferromagnetic next‐nearest‐neighbor interactions, which influences the magnetic behavior of the model.

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“…The effects of the SPD via HSHPT were reported on various types of materials such as hard magnetic Fe-23wt%Co-30%Cr bulks [17] and soft magnetic Fe 73.9 Cu 1 Nb 3 Si 15.5 B 6.6 [18] or Cu 74 Co 26 . [19] Also, changes in the magnetic properties of the nanocrystalline (Nd,Ho)-(Fe,Co)-B alloy were reported in, [20] with > 25% increase of the maximal magnetic energy product after the SPD process. In an overview of this processing approach, Bachmaier et al [21] showed that in addition to grain refinement, the SPD technique can be used to synthesize bulk metastable materials and novel nanocomposite materials.…”

Section: Introductionmentioning

confidence: 97%

Effects of the Severe Plastic Deformation on the Magnetic Properties of Zr13Co87 Ribbons

Popescu

Palade

Sofronie

et al. 2021

Metall Mater Trans A

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The influence of the severe plastic deformation via high-speed high-pressure torsion (HSHPT) on the structural and magnetic properties of the Zr 13 Co 87 alloys is investigated. Moderate applied deformation promotes the growth of the rhombohedral hard magnetic phase leading to the increase of the sample's hardness and magnetic coercivity. A higher degree of deformation affects the samples morphology leading to a critical value of the grain size under which the exchange coupling of the soft phase is less effective. Additionally, it produces a random alignment of the anisotropy axes, which are both detrimental to the hard magnetic properties.

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Magnetic hysteresis properties of nanocrystalline (Nd,Ho)-(Fe,Co)-B alloy after melt spinning, severe plastic deformation and subsequent heat treatment

Cited by 39 publications

References 32 publications

Mixed Spin‐(3/2,7/2) Ising‐Type Ferrimagnet: Monte Carlo–Mean Field Treatment

Mixed Spin‐(3/2,7/2) Ising‐Type Ferrimagnet: Monte Carlo–Mean Field Treatment

Hysteresis and Double‐Spin Compensation Behaviors in a Ferro‐Ferrimagnetic Model of High Half‐Integer Spins

Effects of the Severe Plastic Deformation on the Magnetic Properties of Zr13Co87 Ribbons

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