Slow magnetization dynamics and energy barriers near vortex state nucleation in circular permalloy dots

• Type: Article in International Scientific Journal
• Date: 2011

Authors

G.N. Kakazei (Author) REIT; Ilyn, M (Author) Other; Chubykalo Fesenko, O (Author) Other; Gonzalez, J (Author) Other; Serga, AA (Author) Other; Chumak, AV (Author) Other; Beck, PA (Author) Other; Laegel, B (Author) Other; Hillebrands, B (Author) Other; Guslienko, KY (Author) Other

Journal

Title: Applied Physics Letters

Vol. 99

ISSN: 0003-6951

Publisher: American Institute of Physics

Indexing

ISI Web of Knowledge - 14 Citations

Scopus - 14 Citations

Other information

Authenticus ID: P-002-NZP

DOI: 10.1063/1.3619846

Abstract (EN): Time decay of the magnetization of the arrays of Permalloy circular dots of submicron sizes was measured on a long time scale (hours) near the vortex nucleation field. A considerable influence of external magnetic field and temperature on the slow magnetization dynamics was detected. The observed effects are explained by overcoming the field dependent energy barriers in the process of vortex nucleation. The magnetic viscosity and energy barriers were found from the magnetization time decay dependencies. (C) 2011 American Institute of Physics. [doi:10.1063/1.3619846]

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 3