Influence of fourfold anisotropy form on hysteresis loop shape in ferromagnetic nanostructures

Journal Article · Fri Aug 15 00:00:00 EDT 2014 · AIP Advances

DOI:https://doi.org/10.1063/1.4892955· OSTI ID:22299797

Ehrmann, Andrea ^[1]; Blachowicz, Tomasz ^[2]

---

1. Niederrhein University of Applied Sciences, Faculty of Textile and Clothing Technology, 41065 Mönchengladbach (Germany)
2. Silesian University of Technology, Institute of Physics, Center for Science and Education, 44-100 Gliwice (Poland)

The dependence of the form of different mathematical depictions of fourfold magnetic anisotropies has been examined, using a simple macro-spin model. Strong differences in longitudinal and transverse hysteresis loops occur due to deviations from the usual phenomenological model, such as using absolute value functions. The proposed possible models can help understanding measurements on sophisticated magnetic nanosystems, like exchange bias layered structures employed in magnetic hard disk heads or magnetic nano-particles, and support the development of solutions with specific magnetization reversal behavior needed in novel magneto-electronic devices.

• OSTI ID: 22299797
• Journal Information: AIP Advances, Vol. 4, Issue 8; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ANISOTROPY
ELECTRONIC EQUIPMENT
HYSTERESIS
MAGNETIC DISKS
MAGNETIZATION
NANOSTRUCTURES
PARTICLES