Journal article
Micromagnetic Simulations of Pac-Man-Like Nanomagnets for Memory Applications
Journal of nanoscience and nanotechnology, v 12(9), pp 7422-7425
01 Sep 2012
PMID: 23035487
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
In this work we study magnetic properties of nanomagnets with lateral dimensions 50-100 nm. These structures have a potential of producing static memories with high storage densities. If simple disk is used as basic nanomagnet, its chirality and polarity cannot be read/write easily by in-plane magnetic field. Based on micromagnetic calculations, we have designed "Pac-man-like" (PL) nanomagnet and calculated its magnetic properties using the oommf code. It solves the micromagnetic problem using the Landau-Lifshitz-Gilbert equation. The calculations have shown, that in the PL shape both, the chirality and the polarity, can be controlled by the in-plane magnetic field with x, y components. The PL shape opens straight channel for the energy relaxation towards stable vortex state with defined chirality and polarity for thickness 32-48 nm, and diameter 50-78 nm.
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Details
- Title
- Micromagnetic Simulations of Pac-Man-Like Nanomagnets for Memory Applications
- Creators
- V. Cambel - Institute of Electrical Engineering, SAS, Dubravska Cesta 9, 84104 Bratislava, Slovakia.G. Karapetrov - SAS, Inst Elect Engn, Bratislava 84104, Slovakia
- Publication Details
- Journal of nanoscience and nanotechnology, v 12(9), pp 7422-7425
- Publisher
- Amer Scientific Publishers
- Number of pages
- 4
- Grant note
- RD Program ERDF; European Commission 26240120019 / project CENTE-II, ITMS
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000308856200081
- Scopus ID
- 2-s2.0-84866139190
- Other Identifier
- 991019169417104721
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InCites Highlights
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied
- Physics, Condensed Matter