Eigenfrequencies of vortex state excitations in magnetic submicron-size disks. Page: 1 of 13
This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to Digital Library by the UNT Libraries Government Documents Department.
The following text was automatically extracted from the image on this page using optical character recognition software:
Eigenfrequencies of vortex state excitations in magnetic submicron-size disks
K. Yu. Guslienko 1' *, B. A. Ivanov 2, V. Novosad 3, 4, Y. Otani 3, 5, H. Shima 3, and K. Fukamichi 3
1 School of Physics, Korea Institute for Advanced Study, Seoul 130-012, South Korea
2 Institute of Magnetism, National Academy of Sciences of Ukraine, Kiev 03142, Ukraine
3 Department of Materials Science, Graduate School of Engineering, Tohoku University,
Sendai 980-8579, Japan
Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
5 JST, Japan Science & Technology Corporation, CREST, Kawaguchi 332-0012, Japan
We have studied theoretically and numerically dynamic properties of the vortex magnetic state in
soft submicron ferromagnetic dots with variable thickness and diameter. To describe the vortex
translation mode eigenfrequencies we applied the equation of motion for the vortex collective
coordinates. We calculated the vortex restoring force with explicit account of magnetostatic
interaction on the bases of the "rigid" vortex and two-vortices "side charges free" models. The
latter model well explains the results of our micromagnetic numerical calculations. The translation
mode eigenfrequency is inversely proportional to the vortex static initial susceptibility and lies in
GHz range for submicron in-plane dot sizes.
Here’s what’s next.
This article can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Article.
Guslienko, K. Y.; Ivanov, B. A.; Novosad, V.; Otani, Y.; Shima, H. & Fukamichi, K. Eigenfrequencies of vortex state excitations in magnetic submicron-size disks., article, December 19, 2001; Illinois. (digital.library.unt.edu/ark:/67531/metadc723175/m1/1/: accessed August 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.