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Applied Physics Letters / Volume 87 / Issue 1 / MAGNETISM AND SUPERCONDUCTIVITY

Appl. Phys. Lett. 87, 012502 (2005); http://dx.doi.org/10.1063/1.1968433 (3 pages)

Narrowing of the frequency-linewidth in structured magnetic strips: Experiment and theory

Bijoy Kuanr, R. E. Camley, and Z. Celinski

Center for Magnetism and Magnetic Nanostructures, University of Colorado at Colorado Springs, Colorado Springs, Colorado 80933-7150

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(Received 14 March 2005; accepted 20 May 2005; published online 27 June 2005)

We examine the frequency-linewidth in structured magnetic materials experimentally and theoretically and show that this linewidth can decrease as the external field (or the frequency) is increased. This decrease in the frequency-linewidth occurs in many different systems and does not indicate an increase in damping at low frequencies, as has been suggested. Further, the frequency-linewidth can be very large for extended ferromagnetic films, but becomes significantly smaller for structured films that are narrower than a few microns.

© 2005 American Institute of Physics

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KEYWORDS and PACS

Keywords

ferromagnetic materials, magnetic thin films

PACS

  • 75.70.Ak

    Magnetic properties of monolayers and thin films

  • 75.50.Bb

    Fe and its alloys

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.1968433

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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    B. Kuanr, R. E. Camley, and Z. Celinski, Appl. Phys. Lett. 83, 3969 (2003)APPLAB000083000019003969000001.

    N. Cramer, D. Lucic, R. E. Camley, and Z. Celinski, J. Appl. Phys. 87, 6911 (2000)JAPIAU000087000009006911000001.

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