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Femtosecond X-ray i...
Femtosecond X-ray induced changes of the electronic and magnetic response of solids from electron redistribution
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- Higley, Daniel J. (författare)
- SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA;Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA
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- Reid, Alex H. (författare)
- SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA
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- Chen, Zhao (författare)
- SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA;Stanford Univ, Dept Phys, Stanford, CA 94305 USA
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- Le Guyader, Loic (författare)
- SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA;European Xray Free Electron Laser Facil GmbH, Holzkoppel 4, D-22869 Schenefeld, Germany
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- Hellwig, Olav (författare)
- HGST, San Jose Res Ctr, 3403 Yerba Buena Rd, San Jose, CA 95135 USA;Tech Univ Chemnitz, Inst Phys, D-09107 Chemnitz, Germany;Helmholtz Zentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, D-01328 Dresden, Germany
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- Lutman, Alberto A. (författare)
- SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA
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- Liu, Tianmin (författare)
- SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA;Stanford Univ, Dept Phys, Stanford, CA 94305 USA
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- Shafer, Padraic (författare)
- Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
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- Chase, Tyler (författare)
- SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA;Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA
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- Dakovski, Georgi L. (författare)
- SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA
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- Mitra, Ankush (författare)
- SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA;Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England
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- Yuan, Edwin (författare)
- SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA;Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA
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- Schlappa, Justine (författare)
- European Xray Free Electron Laser Facil GmbH, Holzkoppel 4, D-22869 Schenefeld, Germany
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- Dürr, Hermann (författare)
- Uppsala universitet,FREIA,SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA
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- Schlotter, William F. (författare)
- SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA
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- Stöhr, Joachim (författare)
- SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA
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(creator_code:org_t)
- 2019-11-21
- 2019
- Engelska.
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Ingår i: Nature Communications. - : Nature Publishing Group. - 2041-1723. ; 10
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://www.nature.c...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Resonant X-ray absorption, where an X-ray photon excites a core electron into an unoccupied valence state, is an essential process in many standard X-ray spectroscopies. With increasing X-ray intensity, the X-ray absorption strength is expected to become nonlinear. Here, we report the onset of such a nonlinearity in the resonant X-ray absorption of magnetic Co/Pd multilayers near the Co L-3 edge. The nonlinearity is directly observed through the change of the absorption spectrum, which is modified in less than 40 fs within 2 eV of its threshold. This is interpreted as a redistribution of valence electrons near the Fermi level. For our magnetic sample this also involves mixing of majority and minority spins, due to sample demagnetization. Our findings reveal that nonlinear X-ray responses of materials may already occur at relatively low intensities, where the macroscopic sample is not destroyed, providing insight into ultrafast charge and spin dynamics.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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Higley, Daniel J ...
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Reid, Alex H.
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Chen, Zhao
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Le Guyader, Loic
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Hellwig, Olav
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Lutman, Alberto ...
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visa fler...
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Liu, Tianmin
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Shafer, Padraic
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Chase, Tyler
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Dakovski, Georgi ...
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Mitra, Ankush
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Yuan, Edwin
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Schlappa, Justin ...
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Dürr, Hermann
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Schlotter, Willi ...
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Stöhr, Joachim
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