Graduate Thesis Or Dissertation
Comparative Study of Laser-Induced Ultrafast Demagnetization Dynamics in Fe, Co, and Ni Public Deposited
https://scholar.colorado.edu/concern/graduate_thesis_or_dissertations/kd17ct20t
- Abstract
- Even twenty years after the discovery of ultrafast demagnetization of ferromagnetic materials induced by a femtosecond laser pulse there is still an ongoing debate about the mechanisms that drive the process. Surprisingly, a comprehensive study that compares demagnetization dynamics in different materials on equal footing is lacking. Yet, the scientific community would greatly benefit from such study. We fill this gap by performing a systematic comparison of ultrafast demagnetization behavior in Iron, Cobalt and Nickel, the simplest itinerant ferromagnets, under a wide range of pump fluences. In this experiment, we utilize a tabletop broadband extreme ultraviolet source to probe magnetization dynamics at the M2,3 absorption edges of these three elements using the transverse magneto-optical Kerr effect. The obtained data can be used to inform theory and, thereby, assist in resolving the remaining questions about the micro- and macroscopic mechanisms behind ultrafast laser-induced magnetization dynamics in materials.
- Creator
- Date Issued
- 2016
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- Last Modified
- 2019-11-17
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Thumbnail | Title | Date Uploaded | Visibility | Actions |
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comparativeStudyOfLaserInducedUltrafastDemagnetizationDyna.pdf | 2019-11-17 | Public | Download |