Magnetic domains and annealing-induced magnetic anisotropy in nanocrystalline soft magnetic materials

2008 ◽  
Vol 103 (7) ◽  
pp. 07E730 ◽  
Author(s):  
K. Suzuki ◽  
N. Ito ◽  
S. Saranu ◽  
U. Herr ◽  
A. Michels ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetic Materials ◽  
Soft Magnetic Materials ◽  
Magnetic Domains ◽  
Soft Magnetic ◽  
Induced Magnetic Anisotropy

scholarly journals Flux-closure domains in high aspect ratio electroless-deposited CoNiB nanotubes

2018 ◽  
Vol 5 (4) ◽  
Author(s):  
Michal Staňo ◽  
Sandra Schaefer ◽  
Alexis Wartelle ◽  
Maxime Rioult ◽  
Rachid Belkhou ◽  
...  
Keyword(s):  
Grain Size ◽  
Wave Propagation ◽  
Aspect Ratio ◽  
Magnetic Anisotropy ◽  
Data Storage ◽  
Electroless Plating ◽  
High Aspect Ratio ◽  
Soft Magnetic Materials ◽  
Magnetic Domains ◽  
Soft Magnetic

We report the imaging of magnetic domains in ferromagnetic CoNiB nanotubes with very long aspect ratio, fabricated by electroless plating. While axial magnetization is expected for long tubes made of soft magnetic materials, we evidence series of azimuthal domains. We tentatively explain these by the interplay of anisotropic strain and/or grain size, with magneto-elasticity and/or anisotropic interfacial magnetic anisotropy. This material could be interesting for dense data storage, as well as curvature-induced magnetic phenomena such as the non-reciprocity of spin-wave propagation.

Modeling of the Temperature Dependence of Soft Magnetic Materials

2020 ◽  
Author(s):  
Gereon Goldbeck ◽  
Gerd Bramerdorfer ◽  
Wolfgang Amrhein ◽  
Josef Hinterdorfer ◽  
Bernhard Weis
Keyword(s):  
Temperature Dependence ◽  
Magnetic Materials ◽  
Soft Magnetic Materials ◽  
Soft Magnetic

scholarly journals Effect of the Temperature on the Magnetic and Energetic Properties of Soft Magnetic Composite Materials

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4400
Author(s):  
Luca Ferraris ◽  
Fausto Franchini ◽  
Emir Pošković ◽  
Marco Actis Grande ◽  
Róbert Bidulský
Keyword(s):  
Magnetic Materials ◽  
Eddy Currents ◽  
Electrical Machines ◽  
Soft Magnetic Materials ◽  
Magnetic Composite ◽  
Soft Magnetic ◽  
Soft Magnetic Composite ◽  
Magnetic Performance ◽  
Magnetic Circuits ◽  
Energetic Characterization

In recent years, innovative magnetic materials have been introduced in the field of electrical machines. In the ambit of soft magnetic materials, laminated steels guarantee good robustness and high magnetic performance but, in some high-frequency applications, can be replaced by Soft Magnetic Composite (SMC) materials. SMC materials allow us to reduce the eddy currents and to design innovative 3D magnetic circuits. In general, SMCs are characterized at room temperature, but as electrical machines operate at high temperature (around 100 °C), an investigation analysis of the temperature effect has been carried out on these materials; in particular, three SMC samples with different binder percentages and process parameters have been considered for magnetic and energetic characterization.

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