Our news editors obtained a quote from the research, "The results show a significant increase of the coercivity as well as a reduction of the remanence of the antidot arrays, as compared with their parent continuous film, which depends on the hole size introduced in the Fe20Ni80 thin film. When the external field is applied parallel to the antidots, the reversal of magnetization is achieved by free-core vortex propagation, whereas when the external field is applied perpendicular to the antidots, the reversal occurs through a process other than the coherent rotation (a maze-like pattern)."
According to the news editors, the research concluded: "Besides, in-plane hysteresis loops varying the angle show that the degree of disorder in the sample breaks the expected hexagonal symmetry."
For more information on this research see: Magnetic properties of Fe-20 Ni-80 antidots: Pore size and array disorder.
The news editors report that additional information may be obtained by contacting
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