Relation of the average interaction field with the coercive and interaction field distributions in First order reversal curve diagrams of nanowire arrays

Velázquez, Y. G.; Guerrero, A. Lobo; Martínez, José Mário; Araujo, Elsie; Tabasum, M. R.; Nysten, Bernard; Piraux, Luc; Encinas, Armando

doi:10.1038/s41598-020-78279-1

Cited by 16 publications

(6 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…That is, the larger SFD w values observed at pH ⩾ 5.4 are due to the dominant hcp texture, consistent with what is observed in figure 3 for larger ∆ CFD values at larger pH values. As seen in figure 5(c), the good agreement between the variation of both SFD w and ∆ CFD means that the SFD provides the same information as the CFD shown on the FORC diagrams, which is consistent with previous results on ferromagnetic NW arrays [34].…”

Section: Contribution Of Crystalline Textures To the Coercive Fieldsupporting

confidence: 89%

Crystalline texture of cobalt nanowire arrays probed by the switching field distribution and FORC diagrams

Guerrero

Encinas

Palomo

et al. 2023

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

The crystalline texture of arrays of low diameter Co nanowires (NWs) synthesized by electrodeposition using electrolytes with different acidities (pH in the range 2.0 to 6.6) was studied by the switching field distribution (SFD) and first order reversal curve (FORC) diagrams. Particularly, the SFD determined as the derivative dM/dH of the descending part of the major hysteresis loop (MHL) has proven to be a reliable and powerful method for the identification of different crystalline textures in the NWs and the quantification of their corresponding texture percentages. The presence of the fcc-like texture at low pH values and hcp textures with the c-axis perpendicular and parallel to the NWs axis at higher pH values have been identified by performing multiple Gaussian fits to the SFD by virtue of their different magnetic behavior observed during reversal of the magnetization. The field position and size of each curve in the multiple Gaussian fit provide information about the corresponding magnetic contribution and volumetric texture percentage of each crystalline texture in the NWs, respectively. The analysis of the SFD has been complemented and validated with FORC diagram measurements, showing that the width of the coercive field distribution (CFD) is in good agreement with the width of the SFD. Also, it has been found that the different branches observed in the FORC diagrams along the interaction axis provide further insight on the interaction between magnetocrystalline fields. This work provides a novel methodology for the use of magnetometry as a reliable technique for the study of the interplay between the microstructure and magnetic behavior of arrays of NWs.

show abstract

Section: Contribution Of Crystalline Textures To the Coercive Fieldsupporting

confidence: 89%

Crystalline texture of cobalt nanowire arrays probed by the switching field distribution and FORC diagrams

Guerrero

Encinas

Palomo

et al. 2023

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

“…The SFD curves shown in the inset have distinct peaks, which reveals the non-achievable reversal measurement by one step [54]. This graph implies a noninteracting assembly of particles [55]. The wide peaks and low intensities have substantial exchange coupling [14,56]; the long intensity peaks testify about the percentage of crystallites which are not well coupled by exchange to the hard phase.…”

Section: Vibrating Sample Magnetometrymentioning

confidence: 97%

Tuning the magnetic properties of hard–soft Ba_0.5Sr_0.5Fe₁₀Al₂O₁₉ and Ni_0.1Co_0.9Fe₂O₄ nanocomposites via one pot sol–gel auto combustion method for permanent magnet applications

Abarna,

Ezhil Vizhi

2024

Nanotechnology

View full text Add to dashboard Cite

Permanent magnets generate magnetic fields that can be sustained when a reverse field is supplied. These permanent magnets are effective in a wide range of applications. However, strategic rare-earth element demand has increased interest in replacing them with huge energy product (BH)max. Exchange-coupled hard/soft ferrite nanocomposites have the potential to replace a portion of extravagant rare earth element-based magnets. In the present, we have reported the facile auto-combustion synthesis of exchange coupled Ba0.5Sr0.5Fe10Al2O19 and Ni0.1Co0.9Fe2O4 nanocomposites by increasing the content of soft ferrite over the hard from x= 0.1 to 0.4 wt.%. The XRD combined with Rietveld analysis reflected the presence of hexaferrite and spinel ferrite without the existence of secondary phases. The absorption bands from the FTIR analysis proved that the presence of M-O bonds in tetrahedral site and octahedral sites. Rod and Non-spherical images from TEM represent the hexaferrite and spinel ferrite. Smooth M-H curve and single peak of SFD curve proves that the material has undergone a good exchange coupling. The nano powders displayed an increase in saturation magnetization and decrease in coercivity with the increases in the spinel content. The prepared nano composites were showing higher energy product. And the composite with the ratio x=0.2 displayed a higher value of (BH)max of 13.16 kJ/m3.

show abstract

“…Most modern sources write it with

and

, such as the book by Mayergoyz [ 65 ]. The Preisach plane can also be expressed with other variables as the coordinate system [ 134 , 135 ]. One such case is actually in the original paper by Preisach [ 1 , 2 ], and it is illustrated in Figure 23 .…”

Section: Preisach Modelmentioning

confidence: 99%

Review of Play and Preisach Models for Hysteresis in Magnetic Materials

Mörée

Leijon

2023

Materials

View full text Add to dashboard Cite

This paper studies the properties of the Preisach model and the play model, and compare their similarities. Both are history-dependent hysteresis models that are used to model magnetic hysteresis. They are described as discrete sums of simple hysteresis operators but can easily be reformulated as integral equations of continuous distribution functions using either a Preisach weight distribution function or a play distribution function. The models are mostly seen as phenomenological or mathematical tools but can also be related to friction-like pinning of domain-wall motions, where Rayleigh’s law of magnetic hysteresis can be seen as the simplest case on either the play model or the Preisach model. They are poor at modeling other domain behavior, such as nucleation-driven hysteresis. Yet another hysteresis model is the stop model, which can be seen as the inverted version of the play model. This type of model has advantages for expressions linked to energy and can be related to Steinmetz equation of hysteresis losses. The models share several mathematical properties, such as the congruency property and wiping-out property, and both models have a history of dependence that can be described by the series of past reversal points. More generally, it is shown that the many models can be expressed as Preisach models, showing that they can be treated as subcategories of the Preisach type models. These include the play model, the stop model and also the alternative KP-hysteron model.

show abstract

Relation of the average interaction field with the coercive and interaction field distributions in First order reversal curve diagrams of nanowire arrays

Cited by 16 publications

References 43 publications

Crystalline texture of cobalt nanowire arrays probed by the switching field distribution and FORC diagrams

Crystalline texture of cobalt nanowire arrays probed by the switching field distribution and FORC diagrams

Tuning the magnetic properties of hard–soft Ba_0.5Sr_0.5Fe₁₀Al₂O₁₉ and Ni_0.1Co_0.9Fe₂O₄ nanocomposites via one pot sol–gel auto combustion method for permanent magnet applications

Review of Play and Preisach Models for Hysteresis in Magnetic Materials

Contact Info

Product

Resources

About

Relation of the average interaction field with the coercive and interaction field distributions in First order reversal curve diagrams of nanowire arrays

Cited by 16 publications

References 43 publications

Crystalline texture of cobalt nanowire arrays probed by the switching field distribution and FORC diagrams

Crystalline texture of cobalt nanowire arrays probed by the switching field distribution and FORC diagrams

Tuning the magnetic properties of hard–soft Ba0.5Sr0.5Fe10Al2O19 and Ni0.1Co0.9Fe2O4 nanocomposites via one pot sol–gel auto combustion method for permanent magnet applications

Review of Play and Preisach Models for Hysteresis in Magnetic Materials

Contact Info

Product

Resources

About

Tuning the magnetic properties of hard–soft Ba_0.5Sr_0.5Fe₁₀Al₂O₁₉ and Ni_0.1Co_0.9Fe₂O₄ nanocomposites via one pot sol–gel auto combustion method for permanent magnet applications