Published January 2005
| Version v1
Journal article
Time-resolved study of the increased magnetization precession frequency in Fe wires
- 1. Institute of Applied Physics, Hamburg University, Jungiusstrasse 11, 20355 Hamburg (Germany)
Description
We have performed time-resolved pump-probe measurements on arrays of 1μm-wide Fe wires and on a 50μm-wide Fe stripe. A photoconductive switch was used as a source of fast-risetime magnetic field pulses. The magnetization dynamics were detected by the magneto-optical Kerr effect. We find that the ferromagnetic resonance frequency of the wires is about 16GHz and twice as large as that of the wide Fe stripe. This corresponds to an oscillation period of the magnetization precession of about 60ps at small bias field. We attribute this fast precession to the shape anisotropy of the Fe wires
Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2004.07.046;
- PII
- S0304-8853(04)00804-2;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 285
- Journal Issue
- 1-2
- Journal Page Range
- p. 240-244
- ISSN
- 0304-8853
- CODEN
- JMMMDC
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36072919
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANISOTROPY; FERROMAGNETIC RESONANCE; IRON; KERR EFFECT; MAGNETIC FIELDS; MAGNETIZATION; MAGNETO-OPTICAL EFFECTS; PULSES; TIME RESOLUTION; WIRES
- Descriptors DEC
- DIELECTRIC PROPERTIES; ELECTRICAL PROPERTIES; ELEMENTS; MAGNETIC RESONANCE; METALS; PHYSICAL PROPERTIES; RESOLUTION; RESONANCE; TIMING PROPERTIES; TRANSITION ELEMENTS
Optional Information
- Copyright
- Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.