Work

Dipolar interaction effect on magnetization harmonics in liner chain magnetic nanoparticles

Year: 2024

Type: article

Abstract: Magnetic nanoparticles (MNPs) have been widely studied in many bio applications because of their unique magnetic properties. However, the strong dipolar interaction in MNPs affects their magnetic properties. In this work, to investigate the influence of dipolar interaction on the harmonics of magnetization in MNPs we performed numerical simulations in a liner chain MNPs by stochastic Landau-Lifshitz-Gilbert equation. The simulation results show that the third harmonic component of the magnetization is not uniquely determined by the magnitude of dipole interaction field unlike the fundamental component of the magnetization, it is susceptible to the phase lag between external field and dipole interaction field.

Source: International journal on magnetic particle imaging

DOI: 10.18416/ijmpi.2025.2503035

Authors: ZHANG, HAOCHEN, Sun, Yi, Wang, Haozhe, Yoshida, Takashi

Institution: Kyushu University

Language: English

Topic: Characterization and Applications of Magnetic Nanoparticles

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funder: Japan Society for the Promotion of Science

Awards: Study on magnetization dynamics of magnetic beads for advanced bioengineering, Estimation of hydrodynamic size distribution of magnetic markers and its magnetic immunoassay application