Enhancement of perpendicular magnetic anisotropy and formation of interface in Nd-Dy-Fe-Co-B thick film with Ta spacer layer

Ye, Z.X.; Zhao, Xinguo; Liu, Wei; Liu, L.; Wu, Jianxin; Li, Y.; Ma, Jun; Ju, He; Song, Yuhang; Zhang, Z.D.

doi:10.1016/j.surfin.2023.102697

Cited by 5 publications

(6 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These observations indicate that the increase of the Dy ratio leads to significant microstructural transformation at the diffusion layer. Furthermore, from our previous research, 9,28 and the EDX mapping results shown in Fig. S1,† the region in the green box in Fig.…”

Section: Resultsmentioning

confidence: 80%

“…This indicates that the layered structure observed in the SEM image is composed of Nd 2 Fe 14 B grains. In previous studies, 28 the insertion of a Ta spacer layer in the NdFeB thick film leads to the delamination of the Nd element aggregation region, with aggregation occurring over the Ta spacer layer. However, near the Dy diffusion layer, no Nd element aggregation is observed.…”

Section: Resultsmentioning

confidence: 92%

“…4, which is different from the surrounding area, represents the region of Nd element aggregation, consisting of a Nd-rich phase, an amorphous phase, and small Nd 2 Fe 14 B grains. There are two reasons for the aggregation of Nd elements: 9,25–28 one is the driving force provided by the Ta buffer/capping layer after annealing (high temperature) and the stress generated during the crystallization process, and the other is the formation of columnar crystals providing the path. It is seen that upon increasing the ratio of Dy, the Nd element aggregation region decreases in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…27 Note that this Nd-element aggregation region consists of a Nd-rich phase, an amorphous phase, and small Nd 2 Fe 14 B grains. 26–28 By inserting Ta or Mo spacers into the NdFeB thick film, it is found that the Nd element aggregation region also appears on the Ta or Mo spacers, which means that the Ta and Mo spacers intercept but do not eliminate the flow of Nd elements. 27,28 Moreover, the area of the Nd element aggregation region is relatively large.…”

Section: Introductionmentioning

confidence: 99%

“…26–28 By inserting Ta or Mo spacers into the NdFeB thick film, it is found that the Nd element aggregation region also appears on the Ta or Mo spacers, which means that the Ta and Mo spacers intercept but do not eliminate the flow of Nd elements. 27,28 Moreover, the area of the Nd element aggregation region is relatively large. If it can be transformed into the Nd 2 Fe 14 B main phase, it will significantly improve the magnetic properties of NdFeB thick films.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Simultaneous enhancement of coercivity and saturation magnetization in high-performance anisotropic NdFeB thick films with a Dy diffusion layer

Ye,

Zhao,

Liu

et al. 2023

Nanoscale

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 80%

Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Simultaneous enhancement of coercivity and saturation magnetization in high-performance anisotropic NdFeB thick films with a Dy diffusion layer

Ye,

Zhao,

Liu

et al. 2023

Nanoscale

Self Cite

View full text Add to dashboard Cite

show abstract

Coercivity mechanism and magnetization reversal of anisotropic La-Nd-Dy-Fe-B micron-sized films

Ma,

Zhao,

Liu

et al. 2025

Physica B: Condensed Matter

View full text Add to dashboard Cite

Enhanced dipole-interaction in Nd-Dy-Fe-Co-B/Fe composite thick stacked trilayer

Li,

Zhao,

Liu

et al. 2024

Journal of Applied Physics

View full text Add to dashboard Cite

It is crucial to better understand the magnetization reversal process between soft and hard magnets and to achieve a high maximum energy product in thick composite multilayers. In this study, we find that the exchange interactions dominate in soft–hard-magnetic composite bilayers, while dipole interactions are predominant in soft–hard-magnetic composite trilayers. Based on the first-order reversal curve, magnetization reversal models are developed for both the thick composite bilayer and trilayer. Dipole interactions play an important role in the long range, resulting in higher coercivity and remanence in the thick trilayer. A multilayer in a stacked trilayer structure is achieved, which is composed of thick films with a perpendicular magnetic anisotropy at a thickness of up to 16 μm. The enhanced dipole interactions lead to a remanent polarization of 1 T and a maximum energy product of 22.5 MGOe. This work contributes to the preparation of thick films with a high maximum energy product for applications in magnetic microelectromechanical systems.

show abstract

Enhancement of perpendicular magnetic anisotropy and formation of interface in Nd-Dy-Fe-Co-B thick film with Ta spacer layer

Cited by 5 publications

References 42 publications

Simultaneous enhancement of coercivity and saturation magnetization in high-performance anisotropic NdFeB thick films with a Dy diffusion layer

Simultaneous enhancement of coercivity and saturation magnetization in high-performance anisotropic NdFeB thick films with a Dy diffusion layer

Coercivity mechanism and magnetization reversal of anisotropic La-Nd-Dy-Fe-B micron-sized films

Enhanced dipole-interaction in Nd-Dy-Fe-Co-B/Fe composite thick stacked trilayer

Contact Info

Product

Resources

About