Micromagnetic analysis of orientation-dependent dynamic hysteresis behavior in magnetic nanochains
EUROPEAN PHYSICAL JOURNAL PLUS, vol.140, no.12, 2025 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 140 Issue: 12
- Publication Date: 2025
- Doi Number: 10.1140/epjp/s13360-025-07154-7
- Journal Name: EUROPEAN PHYSICAL JOURNAL PLUS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, INSPEC
- Dokuz Eylül University Affiliated: Yes
Abstract
The dynamic magnetic hysteresis behavior induced by the orientation of the 2D Fe-nanochain system in the x- and y-directions under a sinusoidal magnetic field has been thoroughly examined. The magnetic hysteresis of the nanochain systems consisting of four nanodisks has been obtained using the micromagnetic simulation software OOMMF, which solves the Landau-Lifshitz-Gilbert equation. The hysteresis loop area, remanent magnetization, and coercive field values of both x- and y-oriented nanochains with the interdisk distance parameter s=0, 60, and 120 nm have been calculated as functions of frequency. The simulation results highlight that the orientation axis of the nanochain system and the edge-to-edge nanodisk space significantly govern its dynamic magnetic behavior. Regardless of the external magnetic field along the x-direction, a dynamically ordered phase appeared in the y-direction for the y-oriented nanochain, while the x-oriented nanochain showed a dynamically ordered phase in the x-direction.