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Nanosecond pulsed field magnetization reversal in thin-film NiFe studied by Kerr effect magnetometry
| Content Provider | Scilit |
|---|---|
| Author | Atkinson, D. Allwood, D. A. Cooke, M. D. Cowburn, Russell |
| Copyright Year | 2001 |
| Description | Journal: Journal of Physics D: Applied Physics Magnetization reversal has been studied in a 5 nm thick $Ni_{80}Fe_{20}$ film under the action of a pulsed magnetic field, for pulse durations between 2-102 ns. Fast pulses were applied to the sample from a thin-film microstrip transmission line and magnetization changes were measured using a continuous wave laser magneto-optic Kerr effect magnetometer. The switching field was found to increase as the pulse duration decreased, in qualitative agreement with simple models. More unusually, the switching field was also found to increase as a function of a quasi-static bias field in excess of the value of that bias. This effect is stronger for the shorter pulses. Evidence is presented which suggests that this is due to rapid relaxation of the magnetization after the termination of the pulsed field. |
| Related Links | http://iopscience.iop.org/article/10.1088/0022-3727/34/20/303/pdf |
| Ending Page | 3023 |
| Page Count | 5 |
| Starting Page | 3019 |
| ISSN | 00223727 |
| e-ISSN | 13616463 |
| DOI | 10.1088/0022-3727/34/20/303 |
| Journal | Journal of Physics D: Applied Physics |
| Issue Number | 20 |
| Volume Number | 34 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2001-10-09 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics D: Applied Physics Applied Physics Condensed Matter Physics Thin Film Continuous Wave Transmission Line Magneto Optical Kerr Effect Magnetic Field |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Acoustics and Ultrasonics Condensed Matter Physics Electronic, Optical and Magnetic Materials |
