Quantitative Decoding of Interactions in Tunable Nanomagnet Arrays Using First Order Reversal Curves
arXiv:1401.7749 · doi:10.1038/srep04204
Abstract
To develop a full understanding of interactions in nanomagnet arrays is a persistent challenge, critically impacting their technological acceptance. This paper reports the experimental, numerical and analytical investigation of interactions in arrays of Co nanoellipses using the first-order reversal curve (FORC) technique. A mean-field analysis has revealed the physical mechanisms giving rise to all of the observed features: a shift of the non-interacting FORC-ridge at the low-H end off the local coercivity H axis; a stretch of the FORC-ridge at the high-H end without shifting it off the H axis; and a formation of a tilted edge connected to the ridge at the low-H end. Changing from flat to Gaussian coercivity distribution produces a negative feature, bends the ridge, and broadens the edge. Finally, nearest neighbor interactions segment the FORC-ridge. These results demonstrate that the FORC approach provides a comprehensive framework to qualitatively and quantitatively decode interactions in nanomagnet arrays.
19 pages, 4 figures. 9 page supplemental material including 3 figures
References in corpus (6)
- Artificial "spin ice" in a geometrically frustrated lattice of nanoscale ferromagnetic islands
- Spectral analysis of topological defects in an artificial spin-ice lattice
- Signature of persistent metallic domains in FORC measurements of the VO metal-insulator transition
- Reversal-Field Memory in the Hysteresis of Spin Glasses
- Magnetization Reversal and Nanoscopic Magnetic Phase Separation in Doped La1-xSrxCoO3
- Angular Dependence of Vortex Annihilation Fields in Asymmetric Co Dots
Cited by in corpus (22)
- Skyrmions in Magnetic Multilayers
- Beyond the Interface Limit: Structural and Magnetic Depth Profiles of Voltage-Controlled Magneto-Ionic Heterostructures
- 3D Nanomagnetism in Low Density Interconnected Nanowire Networks
- Tunable Low Density Palladium Nanowire Foams
- Probing the A1 to L10 Transformation in FeCuPt Using the First Order Reversal Curve Method
- Intra-wire coupling in segmented Ni/Cu nanowires deposited by electrodeposition
- Tuning Perpendicular Anisotropy Gradient in Co/Pd Multilayers by Ion Irradiation
- 3D Interconnected Magnetic Nanowire Networks as Potential Integrated Multistate Memristors
- Magnetic Yoking and Tunable Interactions in FePt-Based Hard/Soft Bilayers
- Accessing Different Spin-Disordered States using First Order Reversal Curves
- doFORC tool for calculating first-order reversal curve diagrams of noisy scattered data
- New Reversal Mode in Exchange Coupled Antiferromagnetic/Ferromagnetic Disks: Distorted Viscous Vortex
- Growth-Induced In-Plane Uniaxial Anisotropy in VO/Ni Films
- Magnetization reversal in Kagome artificial spin ice studied by first-order reversal curves
- Skyrmion generation from irreversible fission of stripes in chiral multilayer films
- First-Order Reversal Curves of the Magnetostructural Phase Transition in FeTe
- Multiphase Magnetic Systems: Measurement and Simulation
- Single-Phase L1-Ordered High Entropy Thin Films with High Magnetic Anisotropy
- Machine-Learning Recognition of Dzyaloshinskii-Moriya Interaction from Magnetometry
- Ionically-Driven Synthesis and Exchange Bias in MnN/MnN Heterostructures
- Magnetic fingerprint of interfacial coupling between CoFe and nanoscale ferroelectric domain walls
- Element-Specific First Order Reversal Curves Measured by Magnetic Transmission X-ray Microscopy