Related Experiment Video
Updated: May 30, 2026

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
Published on: July 20, 2022
The magnetoelectric effect in Ni-Fe alloy/ZnO nanorod array composites
Y C Chen1, C L Cheng, S C Liou
1Department of Physics, National Taiwan University, Taipei 106, Taiwan.
Abstract:
Ni-Fe alloy/ZnO nanorod composites were fabricated and the magnetoelectric effect was demonstrated. The ZnO and Ni-Fe alloy serve as the piezoelectric phase and the magnetostrictive phase in the nanocomposite, respectively. Since the nanorod structure possesses the inherent nature of a large surface-to-volume ratio, it greatly enhances the interplay between the piezoelectric and magnetostrictive coupling. Besides, the substrate clamping effect can be avoided. Our newly devised composite therefore provides a different species for magnetoelectric applications. It is interesting that the magnetoelectric voltage coefficient determined by the direct measurement method can reach a value as high as 0.48 mV cm(-1) Oe(-1).
Related Concept Videos
Ferromagnetism
Atomic Nuclei: Magnetic Resonance
Magnetic Susceptibility and Permeability
When diamagnetic materials are placed under an external magnetic field, the moments opposite to the field are induced. Hence, the susceptibility for diamagnets has a minimal negative value of 10-5–10-6. Since...

