Document Type
Article
Source Publication Title
Applied Physics Letters
Abstract
It has been well known that recoil loop openness is related to soft-phase presence in exchange-coupled hard-soft nanocomposite magnets. Our study on recoil loop openness of exchange-coupled nanocrystalline magnets (both single-phase and composite) using a micromagnetic finite-element method has revealed that the recoil loop openness is also due to decreased grain size. Open recoil loops exist in single-phase magnets as well. Simulation of magnetization distribution in both nanocrystalline single-phase magnets and nanocomposite magnets shows that the openness of the recoil loops is correlated with unstable magnetization behavior in grain boundary and soft-phase regions, which is attributed to high energy state caused by exchange coupling in these regions. The simulation results are supported by experimental data.
Disciplines
Physical Sciences and Mathematics | Physics
Publication Date
4-29-2009
Language
English
License
This work is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 4.0 International License.
Recommended Citation
Rong, Chuan-Bing and Liu, J. Ping, "Grain boundary contribution to recoil loop openness of exchange-coupled nanocrystalline magnets" (2009). Physics Faculty Publications. 18.
https://mavmatrix.uta.edu/physics_facpubs/18