Micromagnetic study of relaxed domain structure in square shaped ferromagnets

Dede Djuhana, Candra Kurniawan, Jonifan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this study, we have investigated the relaxed domain structure of square-shaped ferromagnets by micromagnetic simulation. The simulation was performed to some basic ferromagnetic materials such as Cobalt (Co), Iron (Fe), Nickel (Ni), and Permalloy (Py). The side length of square-shaped ferromagnets was varied from 100 to 500 nm and the thickness were 5, 10, and 15 nm. The cell size was 2.5×2.5×2.5 nm3 and the damping factor α was 0.05. The initial magnetization state was random configuration. The domain structure was observed after the system reached equilibrium. We observed that there are two pattern of domain configuration, single domain (SD) and multi-domain (MD) structures. For all materials, the domain tended to form multi-domain structure as the side length and thickness increased. By analyzing the energy profiles, it was found that the SD structure exhibited the higher demagnetization energy than the exchange energy, while the MD structure showed the opposite.

Original languageEnglish
Title of host publicationProceedings of the 5th International Symposium on Frontier of Applied Physics, ISFAP 2019
EditorsMuhandis Shiddiq, Andri Hardiansyah, Witha Berlian Kesuma Putri, Yuliati Herbani, Edi Kurniawan, Deni Khaerudini, Ahmad Nugraha, Syuhada Syuhada, Hamzah Fauzi, Abdulloh Rifai, Edi Suprayoga, Anggito Tetuko, Toto Sudiro
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735420168
DOIs
Publication statusPublished - 3 Sep 2020
Event5th International Symposium on Frontier of Applied Physics, ISFAP 2019 - Tangerang Selatan, Indonesia
Duration: 23 Oct 201924 Oct 2019

Publication series

NameAIP Conference Proceedings
Volume2256
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference5th International Symposium on Frontier of Applied Physics, ISFAP 2019
Country/TerritoryIndonesia
CityTangerang Selatan
Period23/10/1924/10/19

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