Length distribution effects on the dipolar interactions for hexagonal arrays of nine nanowires

• Published in: Journal of magnetism and magnetic materials Vol. 506; p. 166797
• Main Authors: Guerra, Y., Peña-Garcia, R., do Nascimento-Junior, A.M., Viana, Bartolomeu C., Padrón-Hernández, E.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15-07-2020; Elsevier BV
• Subjects: Arrays; Coercivity; Ferromagnetic nanowires; Magnetization curves; Micromagnetic simulation; Nanowires; Nickel; Remanence; Reversal modes; Ferromagnetic nanowires; Reversal modes; Coercivity; Micromagnetic simulation
• ISSN: 0304-8853; 1873-4766
• DOI: 10.1016/j.jmmm.2020.166797

•Effects of the length distribution on magnetization curves are not relevant.•Angular dependence of coercivity no presents significant variations.•Maps showed important information for the reversion.
In the present work, results about the effects of the length distribution in hexagonal arrays of nine nickel nanowires were obtained by micromagnetic simulation. Arrangements with average nanowires length of 500 nm and different length dispersion (σ = 0, 15, 62.49, 92.47 nm) were simulated. The effects of the length distribution on magnetization curves are not relevant and the angular dependence of the remanence and coercivity does not present significant variations. Despite that, for the reversal process, there are variations as the σ value increases. Moment configuration maps showed important information for the reversion, suggesting that hysteresis curves are not sufficient in arrays of nine nickel nanowires.