Zobrazeno 1 - 10
of 109
pro vyhledávání: '"M N Piancastelli"'
Autor:
E Kukk, D Céolin, O Travnikova, R Püttner, M N Piancastelli, R Guillemin, L Journel, T Marchenko, I Ismail, J Martins, J-P Rueff, M Simon
Publikováno v:
New Journal of Physics, Vol 23, Iss 6, p 063077 (2021)
Doppler and recoil effects are an integral part of the photoemission process at the high kinetic energies reached in hard x-ray photo-electron spectroscopy (HAXPES) and have a major effect on the observed lineshape, resulting in broadening, energy lo
Externí odkaz:
https://doaj.org/article/67026f696486447db9a5ddc4f68935c9
Publikováno v:
New Journal of Physics, Vol 21, Iss 4, p 043015 (2019)
We have recently initiated hard x-ray photoelectron spectroscopy experiments on heavy atoms and heavy-element containing molecules in gas phase by using synchrotron radiation up to 35 keV at SPring-8 undulator beamlines. We have successfully measured
Externí odkaz:
https://doaj.org/article/a3b141d22e1c4cb386bd4049a467e216
Autor:
M Mucke, V Zhaunerchyk, L J Frasinski, R J Squibb, M Siano, J H D Eland, P Linusson, P Salén, P v d Meulen, R D Thomas, M Larsson, L Foucar, J Ullrich, K Motomura, S Mondal, K Ueda, T Osipov, L Fang, B F Murphy, N Berrah, C Bostedt, J D Bozek, S Schorb, M Messerschmidt, J M Glownia, J P Cryan, R N Coffee, O Takahashi, S Wada, M N Piancastelli, R Richter, K C Prince, R Feifel
Publikováno v:
New Journal of Physics, Vol 17, Iss 7, p 073002 (2015)
Few-photon ionization and relaxation processes in acetylene (C _2 H _2 ) and ethane (C _2 H _6 ) were investigated at the linac coherent light source x-ray free electron laser (FEL) at SLAC, Stanford using a highly efficient multi-particle correlatio
Externí odkaz:
https://doaj.org/article/89df29f9a1374399a8e92bf604c02b47
Autor:
R Püttner, D Céolin, O Travnikova, J Palaudoux, M Hoshino, H Kato, H Tanaka, Y Tamenori, C C Wang, C Miron, K Ueda, M N Piancastelli
Publikováno v:
New Journal of Physics, Vol 15, Iss 3, p 033003 (2013)
Auger decay spectra of CO subsequent to O 1s ionization with 549.85 eV photons, i.e. close to the top of the shape resonance, are presented. Their comparison with the normal Auger spectrum recorded at a photon energy well above the shape resonance re
Externí odkaz:
https://doaj.org/article/2c4c851c701143faa849e34df080ef24
Autor:
R. J. Squibb, M. Sapunar, A. Ponzi, R. Richter, A. Kivimäki, O. Plekan, P. Finetti, N. Sisourat, V. Zhaunerchyk, T. Marchenko, L. Journel, R. Guillemin, R. Cucini, M. Coreno, C. Grazioli, M. Di Fraia, C. Callegari, K. C. Prince, P. Decleva, M. Simon, J. H. D. Eland, N. Došlić, R. Feifel, M. N. Piancastelli
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)
The first steps in photochemical processes involve changes in electronic and geometric structure on extremely short timescales. Here, the authors report femtosecond dynamics in prototypical acetylacetone, by pump-probe photoexcitation-photoemission e
Externí odkaz:
https://doaj.org/article/c44113b9e3f048fa8921c959f103ef60
Autor:
T. Jahnke, R. Guillemin, L. Inhester, S.-K. Son, G. Kastirke, M. Ilchen, J. Rist, D. Trabert, N. Melzer, N. Anders, T. Mazza, R. Boll, A. De Fanis, V. Music, Th. Weber, M. Weller, S. Eckart, K. Fehre, S. Grundmann, A. Hartung, M. Hofmann, C. Janke, M. Kircher, G. Nalin, A. Pier, J. Siebert, N. Strenger, I. Vela-Perez, T. M. Baumann, P. Grychtol, J. Montano, Y. Ovcharenko, N. Rennhack, D. E. Rivas, R. Wagner, P. Ziolkowski, P. Schmidt, T. Marchenko, O. Travnikova, L. Journel, I. Ismail, E. Kukk, J. Niskanen, F. Trinter, C. Vozzi, M. Devetta, S. Stagira, M. Gisselbrecht, A. L. Jäger, X. Li, Y. Malakar, M. Martins, R. Feifel, L. Ph. H. Schmidt, A. Czasch, G. Sansone, D. Rolles, A. Rudenko, R. Moshammer, R. Dörner, M. Meyer, T. Pfeifer, M. S. Schöffler, R. Santra, M. Simon, M. N. Piancastelli
Publikováno v:
Physical Review X, Vol 11, Iss 4, p 041044 (2021)
The ultrafast structural dynamics of water following inner-shell ionization is a crucial issue in high-energy radiation chemistry. We have exposed isolated water molecules to a short x-ray pulse from a free-electron laser and detected momenta of all
Externí odkaz:
https://doaj.org/article/9870d37191d94df5a2e9ba4285214048
Autor:
S. Kosugi, F. Koike, M. Iizawa, F. Hosseini, J. Martins, T. Marchenko, O. Travnikova, J. D. Bozek, K. Ito, S. Fritzsche, M. N. Piancastelli, M. Simon, Y. Azuma
Publikováno v:
Physical Review A. 107
Autor:
S. H. Southworth, S. Li, D. Koulentianos, G. Doumy, L. Young, D. A. Walko, R. Püttner, D. Céolin, R. Guillemin, I. Ismail, O. Travnikova, M. N. Piancastelli, M. Simon, S. T. Manson, T. W. Gorczyca
Publikováno v:
Physical Review A. 107
Autor:
I. Vela-Peréz, F. Ota, A. Mhamdi, Y. Tamura, J. Rist, N. Melzer, S. Uerken, G. Nalin, N. Anders, D. You, M. Kircher, C. Janke, M. Waitz, F. Trinter, R. Guillemin, M. N. Piancastelli, M. Simon, V. T. Davis, J. B. Williams, R. Dörner, K. Hatada, K. Yamazaki, K. Fehre, Ph. V. Demekhin, K. Ueda, M. S. Schöffler, T. Jahnke
Publikováno v:
Physical Chemistry Chemical Physics
Physical chemistry, chemical physics 25(19), 13784-13791 (2023). doi:10.1039/D2CP05942H
Physical chemistry, chemical physics 25(19), 13784-13791 (2023). doi:10.1039/D2CP05942H
Physical chemistry, chemical physics 25(19), 13784 - 13791 (2023). doi:10.1039/D2CP05942H
We present a study on molecular-frame photoelectron angular distributions (MFPADs) of small molecules using circularly polarized synchrotron light. We find
We present a study on molecular-frame photoelectron angular distributions (MFPADs) of small molecules using circularly polarized synchrotron light. We find
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a3486b06d0de91d4f67c99126bdabc7
Autor:
R. Guillemin, T. Marin, M. Zmerli, C. Bomme, I. Ismail, L. Journel, T. Marchenko, O. Travnikova, M. N. Piancastelli, M. Simon
Publikováno v:
Physical chemistry chemical physics : PCCP. 25(1)
Momentum vector correlation is a powerful tool to study molecular dissociation. We have studied the three-body fragmentation of carbon disulfide after sulfur 1s photoionization by means of momentum imaging techniques. Concerted and sequential pathway