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- W4313532370 abstract "Time resolved measurements of the linear magneto-optical Kerr rotation reveal that, in the {it 3d} ferromagnets Fe, Co and Ni, the amplitude of the demagnetization increases linearly with the fluence of the light. We rationalize this phenomenon as being linearly driven by the increase in temperature, the electron-phonon and electron-magnon scattering, and a reduction of the inter-atomic exchange. The amplitude of the latter phenomenon, which until the present study has been widely overlooked, is obtained through textit{ab initio} density functional theory calculations, and is argued to be the principal source of demagnetization in Ni and Co, while still contributing largely in Fe." @default.
- W4313532370 created "2023-01-06" @default.
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- W4313532370 date "2023-01-03" @default.
- W4313532370 modified "2023-10-18" @default.
- W4313532370 title "Uncovering the role of the light-induced reduction of the inter-atomic exchange in the ultrafast demagnetization of Fe, Co, and Ni" @default.
- W4313532370 doi "https://doi.org/10.48550/arxiv.2301.01055" @default.
- W4313532370 hasPublicationYear "2023" @default.
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