Mesoscale magnetic rings: Complex magnetization reversal uncovered by FORC

Muscas, Giuseppe; Menniti, Matteo; Bručas, Rimantas; Jönsson, Petra E.

doi:10.1016/j.jmmm.2020.166559

Cited by 5 publications

(3 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This behavior together with the presence of weak negative tails is a clear sign of strong demagnetizing interaction. [ 24d,26 ] It is in good agreement with the expected strong dipolar interactions that were confirmed by the hysteresis loops and observed also in the micromagnetic simulations (see below).…”

Section: Resultssupporting

confidence: 89%

“…This signal moves toward larger fields ( H ) while reducing the initial reversal fields ( H R ) suggesting that nanowires are under the influence of positive ferromagnetic‐like interactions. This tends to promote the stability of the initial reversed condition [ 24d,26 ] and it is also confirmed by the large and weak negative tail. Then, the IP FORC diagram of the Ni nanowire array (Figure 4c) is consistent with the results reported in the literature, [ 23b,d,30 ] where a nearly reversible magnetization process by coherent rotation has been suggested.…”

Section: Resultsmentioning

confidence: 88%

See 1 more Smart Citation

Unveiling the Complex Magnetization Reversal Process in 3D Nickel Nanowire Networks

Ruiz‐Clavijo

Caballero‐Calero

Navas

et al. 2022

Adv Elect Materials

View full text Add to dashboard Cite

Understanding the interactions among magnetic nanostructures is one of the key factors to predict and control the advanced functionalities of 3D integrated magnetic nanostructures. In this work, the focus is on different interconnected Ni nanowires forming an intricate, but controlled, and ordered magnetic system: Ni 3D Nanowire Networks (3DNNs). These self‐ordered systems present striking anisotropic magnetic responses, depending on the interconnections’ position between nanowires. To understand their collective magnetic behavior, the magnetization reversal processes are studied within different Ni 3D Nanowire Networks compared to the 1D nanowire 1DNW array counterparts. The systems are characterized at different angles using first magnetization curves, hysteresis loops, and First Order Reversal Curves techniques, which provided information about the key features that enable macroscopic tuning of the magnetic properties of the 3D nanostructures. In addition, micromagnetic simulations endorse the experiments, providing accurate modeling of their magnetic behavior. The results reveal a plethora of magnetic interactions, neither evident nor intuitive, which are the main role players controlling the collective response of the system. The results pave the way for the design and realization of 3D novel metamaterials and devices based on the nucleation and propagation of ferromagnetic domain walls both in 3D self‐ordered systems and future nano‐lithographed devices.

show abstract