Journal article
Minimum field strength in precessional magnetization reversal
- Back CH Laboratorium fur Festkorperphysik, ETH Zurich, CH-8093 Zurich, Switzerland. IBM Research Division, Zurich Research Laboratory, CH-8803 Ruschlikon, Switzerland. IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, CA.
- Allenspach R
- Weber W
- Parkin SS
- Weller D
- Garwin EL
- Siegmann HC
- 1999-08-07
Published in:
- Science (New York, N.Y.). - 1999
English
Ultrafast magnetic field pulses as short as 2 picoseconds are able to reverse the magnetization in thin, in-plane, magnetized cobalt films. The field pulses are applied in the plane of the film, and their direction encompasses all angles with the magnetization. At a right angle to the magnetization, maximum torque is exerted on the spins. In this geometry, a precessional magnetization reversal can be triggered by fields as small as 184 kiloamperes per meter. Applications in future ultrafast magnetic recording schemes can be foreseen.
- Language
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- English
- Open access status
- closed
- Identifiers
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- DOI 10.1126/science.285.5429.864
- PMID 10436149
- Persistent URL
- https://sonar.ch/global/documents/127865
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