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Transient Resonant ...
Transient Resonant Auger-Meitner Spectra of Photoexcited Thymine
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- Wolf, T.J.A. (författare)
- SLAC Natl Accelerator Lab, Stanford PULSE Inst, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.
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- Paul, A.C. (författare)
- Norwegian Univ Sci & Technol, Dept Chem, NO-7491 Trondheim, Norway.
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- Folkestad, S.D. (författare)
- Norwegian Univ Sci & Technol, Dept Chem, NO-7491 Trondheim, Norway.
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- Myhre, R.H. (författare)
- Norwegian Univ Sci & Technol, Dept Chem, NO-7491 Trondheim, Norway.
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- Cryan, J.P. (författare)
- SLAC Natl Accelerator Lab, Stanford PULSE Inst, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.
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- Berrah, N. (författare)
- Univ Connecticut, Dept Phys, 2152 Hillside Rd, Storrs, CT 06269 USA.
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- Bucksbaum, P.H. (författare)
- SLAC Natl Accelerator Lab, Stanford PULSE Inst, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.;Stanford Univ, Dept Phys, 382 Via Pueblo Mall, Stanford, CA 94305 USA.;Stanford Univ, Dept Appl Phys, 382 Via Pueblo Mall, Stanford, CA 94305 USA.
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- Coriani, S. (författare)
- Norwegian Univ Sci & Technol, Dept Chem, NO-7491 Trondheim, Norway.;Tech Univ Denmark, DTU Chem, DK-2800 Lyngby, Denmark.
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- Coslovich, G. (författare)
- SLAC Natl Accelerator Lab, Linac Coherent Lightsource, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.
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- Feifel, Raimund (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),Univ Gothenburg, Dept Phys, Origovagen 6B, S-41258 Gothenburg, Sweden.
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- Martinez, T.J. (författare)
- SLAC Natl Accelerator Lab, Stanford PULSE Inst, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.;Stanford Univ, Dept Chem, 333 Campus Dr, Stanford, CA 94305 USA.
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- Moeller, S.P. (författare)
- SLAC Natl Accelerator Lab, Linac Coherent Lightsource, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.
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- Mucke, Melanie (författare)
- Uppsala universitet,Institutionen för fysik och astronomi
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- Obaid, R. (författare)
- Univ Connecticut, Dept Phys, 2152 Hillside Rd, Storrs, CT 06269 USA.
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- Plekan, O. (författare)
- Elettra Sincrotrone Trieste, I-34149 Trieste, Italy.
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- Squibb, Richard J. (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),Univ Gothenburg, Dept Phys, Origovagen 6B, S-41258 Gothenburg, Sweden.
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- Koch, H. (författare)
- Scuola Normale Super Pisa, I-56126 Pisa, Italy.
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- Guehr, M. (författare)
- Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, DE-14476 Potsdam, Germany.
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SLAC Natl Accelerator Lab, Stanford PULSE Inst, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA Norwegian Univ Sci & Technol, Dept Chem, NO-7491 Trondheim, Norway. (creator_code:org_t)
- 2021
- 2021
- Engelska.
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Ingår i: Faraday discussions. - : Royal Society of Chemistry (RSC). - 1364-5498 .- 1359-6640. ; 228, s. 555-70
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https://gup.ub.gu.se... (primary) (free)
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http://arxiv.org/pdf...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
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- We present the first investigation of excited state dynamics by resonant Auger-Meitner spectroscopy (also known as resonant Auger spectroscopy) using the nucleobase thymine as an example. Thymine is photoexcited in the UV and probed with X-ray photon energies at and below the oxygen K-edge. After initial photoexcitation to a ππ* excited state, thymine is known to undergo internal conversion to an nπ* excited state with a strong resonance at the oxygen K-edge, red-shifted from the groundstate π* resonances of thymine (see our previous study Wolf et al.,Nat. Commun., 2017,8, 29). We resolve and compare the Auger-Meitner electron spectra associated both with the excited state and ground state resonances, and distinguish participato rand spectator decay contributions. Furthermore, we observe simultaneously with the decay of the nπ* state signatures the appearance of additional resonant Auger-Meitner contributions at photon energies between the nπ* state and the ground state resonances. We assign these contributions to population transfer from the nπ* state to a ππ* triplet state via intersystem crossing on the picosecond timescale based on simulations of the X-ray absorption spectra in the vibrationally hot triplet state. Moreover, we identify signatures from the initially excited ππ* singlet state which we have not observed in our previous study.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
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Wolf, T.J.A.
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Paul, A.C.
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Folkestad, S.D.
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Myhre, R.H.
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Cryan, J.P.
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Berrah, N.
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Bucksbaum, P.H.
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Coriani, S.
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Coslovich, G.
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Feifel, Raimund
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Martinez, T.J.
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Moeller, S.P.
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Mucke, Melanie
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Obaid, R.
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Plekan, O.
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Squibb, Richard ...
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Koch, H.
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Guehr, M.
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- NATURVETENSKAP
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Göteborgs universitet
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Uppsala universitet