Ultrafast Demagnetization After Laser Pulse Irradiation in Ni: Ab Initio Electron-Phonon Scattering and Phase Space Calculations
| Autor: | Manfred Fähnle, Michael Haag, Christian Illg |
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| Rok vydání: | 2014 |
| Předmět: |
Condensed matter physics
Condensed Matter::Other Scattering Chemistry Physics::Medical Physics Demagnetizing field Ab initio Pulse irradiation Laser law.invention Condensed Matter::Materials Science law Condensed Matter::Superconductivity Phase space Physics::Space Physics Electron phonon scattering Ultrashort pulse |
| Zdroj: | Springer Proceedings in Physics ISBN: 9783319077420 |
| DOI: | 10.1007/978-3-319-07743-7_42 |
| Popis: | Electron-phonon scattering is one possible candidate to explain ultrafast demagnetization in Ni. We calculate the demagnetization time and the demagnetization rate with ab initio density-functional theory and estimate the phase space for scattering which is related to the maximum possible demagnetization. We find that both demagnetization rate and phase space are too small for reasonable excitations to explain the experimental demagnetization. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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