Zobrazeno 1 - 10
of 63
pro vyhledávání: '"I Hjelte"'
Autor:
Margit Bässler, C. Miron, I Hjelte, Maria Novella Piancastelli, Olle Björneholm, Martin Magnuson, Annika Eschner, Reinhold F. Fink, Svante Svensson, Stacey Ristinmaa Sörensen
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 39:L269-L275
A core-excited sulfur state with a lifetime almost one order of magnitude longer than in molecular 2p core-hole states is selectively produced by ultrafast dissociation of S 2p -> sigma* excited OCS. Clear evidence for this is provided by strong atom
Autor:
Kiyoshi Ueda, K. Okada, Maria Novella Piancastelli, Norio Saito, Vincenzo Carravetta, I Hjelte, Masashi Kitajima, A. De Fanis, Hiroshi Tanaka
Publikováno v:
Chemical Physics Letters. 399:426-432
We have obtained electron decay spectra following core excitation of NO2 below both the nitrogen and the oxygen K-edges. The resonant decay through participator processes is weak below the N K-edge, while is more intense below the O K-edge. The prope
Autor:
I Hjelte, Olle Björneholm, Stacey L. Sorensen, Svante Svensson, M. N. Piancastelli, M. Bässler, Carl Magnus Jansson, Karroline Wiesner
Publikováno v:
Chemical Physics Letters. 370:781-788
We present evidence for ultra-fast dissociation of molecular ammonia when photo-excited to the Nls --> 4a(1) core-hole state. This finding is based on resonant Auger spectroscopical results as well as qualitative arguments concerning the photon energ
Autor:
Hiroaki Yoshida, Maria Novella Piancastelli, Norio Saito, Inosuke Koyano, M. Okamoto, I Hjelte, Atsunari Hiraya, Hiroshi Tanaka, K. Ueda, Katsuyuki Nobusada, Masashi Kitajima, A. De Fanis
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 35:L23-L29
Resonant Auger spectra of H2O are recorded with unprecedented resolution, for excitation energies tuned across the O 1s→2b2 resonance. Electron emission spectra for decay to the 1b2-1 final state show a partially resolved vibrational envelope whose
Autor:
L. Sorensen, I. Hjelte, Bernd Schimmelpfennig, M. Bässler, Svante Svensson, F.Kh. Gel'mukhanov, A. Naves de Brito, Hans Ågren, Olle Björneholm, Vincenzo Carravetta, Paweł Sałek, Maria Novella Piancastelli, Raimund Feifel
Publikováno v:
Chemical Physics Letters. 343:332-338
Resonant excitation to the F1s-σ* dissociative state in hydrogen fluoride gives a photoelectron spectrum where the spectator part contains strong atomic lines but a participator part where such lines are lacking. We demonstrate that this contrasting
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 34:1745-1755
The sulfur L-shell photoelectron spectrum of the carbon disulfide molecule has been studied using monochromated synchrotron radiation with a photon energy of 250 eV. The spectrum is atomic like, showing three major bands that can be associated with t
Autor:
S. Buil, T. Kihlgren, Gunnar Öhrwall, Olle Björneholm, Dominique Descamps, S. Sundin, I. Hjelte, Johan Norin, Claes-Göran Wahlström, S. L. Sorensen, Anne L'Huillier, Svante Svensson
Publikováno v:
The Journal of Chemical Physics. 112:8038-8042
We employ a pump–probe approach to molecular photoionization to study fast dissociation of Rydberg states in acetylene. By using time-resolved photoelectron spectroscopy to study the electronic state of the resulting ions we are able to monitor the
Autor:
H. Wang, S. L. Sorensen, M. Bässler, Paweł Sałek, Maria Novella Piancastelli, A. Ausmees, Olle Björneholm, R. Feifel, I. Hjelte, Catalin Miron, F.Kh. Gel'mukhanov, Reinhold F. Fink, Svante Svensson, Hans Ågren
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 33:1819-1826
We report the observation of the unusually weak decay of the N 1s --> pi* core-excited N-2 molecule to the (B) over tilde (2)Sigma(u)(+) final state of N-2(+), which is only detectable in an exp ...
Autor:
H. Wang, I. Hjelte, Catalin Miron, Olle Björneholm, A. Ausmees, Faris Gel'mukhanov, Svante Svensson, M. Bässler, Maria Novella Piancastelli, Raimund Feifel, S. L. Sorensen, Hans Ågren
Publikováno v:
Physical Review Letters. 84:2826-2829
By exploiting the core-excitation-induced dissociation of O2, we find that the Auger emission exhibits a Doppler-like energy shift. We show this to be a manifestation of localization of the core hole and propose that the problem of core-hole localiza
Autor:
S Sundin, Andre Bueno Machado, Olle Björneholm, A. Naves de Brito, I Hjelte, Alexandra Mocellin, S. L. Sorensen, Raimund Feifel
Publikováno v:
Scopus-Elsevier
The fragmentation of the water molecule upon resonant core excitation and subsequent Auger decay has been studied by electron–ion coincidence spectroscopy. A qualitative comparison between the fragmentation patterns for H 2 O and D 2 O reveals that