| Autor: |
Stamm, C., Pontius, N., Kachel, T., Wietstruk, M., Dürr, H. A. |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
Phys. Rev. B 81, 104425 (2010) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.81.104425 |
| Popis: |
We follow for the first time the evolution of the spin and orbital angular momentum of a thin Ni film during ultrafast demagnetization, by means of x-ray magnetic circular dichroism. Both components decrease with a 130 +/- 40 fs time constant upon excitation with a femtosecond laser pulse. Additional x-ray absorption measurements reveal an increase in the spin-orbit interaction by 6 +/- 2 % during this process. This is the experimental demonstration quantifying the importance of spin-orbit mediated processes during the demagnetization. |
| Databáze: |
arXiv |
| Externí odkaz: |
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