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Cherepkov, N. A.; Semenov, S.; Hikosaka, Y.; Ito, Kenji; Motoki, Shinichi; Yagishita, Akira

doi:10.1103/physrevlett.84.250

Cited by 64 publications

(81 citation statements)

References 15 publications

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“…Electron angular distributions for molecules fixed in space by detection of the molecular fragments have been first performed by Shigemasa and coworkers with traditional analyzers for electrons and ions (Shigemasa et al 1995) (see also Shigemasa et al (1998); Watanabe et al (1997); Cherepkov et al (2000); Cherepkov et al (2000a); Ito et al (2000); Ito et al (2000a); Motoki et al (2002) for later experiments by this group). One other group has combined timeof-flight electron spectrometers (Golovin et al 1997;Heiser et al 1997;Gessner et al 2002) with imaging of the molecular fragments.…”

Section: Photoionisation Of Fixed-in-space Moleculesmentioning

confidence: 99%

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

et al. 2003

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Recoil-ion and electron momentum spectroscopy is a rapidly developing technique that allows one to measure the vector momenta of several ions and electrons resulting from atomic or molecular fragmentation. In a unique combination, large solid angles close to π Microccopes -the "bubble chambers of atomic physics" -mark the decisive step forward to investigate many-particle quantum-dynamics occurring when atomic and molecular systems or even surfaces and solids are exposed to time-dependent external electromagnetic fields.The present review concentrates on just these latest technical developments and on at least four new classes of fragmentation experiments that have emerged within about the last five years. First, multi-dimensional images in momentum space brought unprecedented information on the dynamics of single-photon induced fragmentation of fixed-in-space molecules and on their structure. Second, a break-through in the investigation of highintensity short-pulse laser induced fragmentation of atoms and molecules has been achieved by using Reaction Microccopes. Third, for electron and ion-impact, the investigation of twoelectron reactions has matured to a state such that first fully differential cross sections (FDCS) are reported. Forth, comprehensive sets of FDCS for single ionisation of atoms by ion-impact, the most basic atomic fragmentation reaction, brought new insight, a couple of surprises and unexpected challenges to theory at keV to GeV collision energies. In addition, a brief summary on the kinematics is provided at the beginning. Finally, the rich future potential of the method is shortly envisaged.2

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Section: Photoionisation Of Fixed-in-space Moleculesmentioning

confidence: 99%

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

et al. 2003

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“…On the other hand, those for CO are asymmetric [2,3,5,8], due to the asymmetric nature of the hetero-nuclear diatom. Calculations employing Hartree-Fock and random-phase-approximation methods and an extension of the standard multiple scattering approach reproduce key features of the measured MF-PADs well [4,7,10].…”

mentioning

confidence: 97%

“…symmetry through a plane perpendicular to the molecular axis [1,4,6,7], even if the photoemission is related to asymmetric N + -N ++ fragmentation [6]. On the other hand, those for CO are asymmetric [2,3,5,8], due to the asymmetric nature of the hetero-nuclear diatom.…”

mentioning

confidence: 99%

Molecular frame photoelectron angular distribution for oxygen 1s photoemission from CO₂molecules

Saitô

Ueda

Fanis

et al. 2005

J. Phys. B: At. Mol. Opt. Phys.

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We have measured photoelectron angular distributions in the molecular frame (MF-PADs) for O 1s photoemission from CO 2 , using photoelectron-O + -CO + coincidence momentum imaging. Results for the molecular axis at 0, 45 and 90• to the electric vector of the light are reported. The major features of the MF-PADs are fairly well reproduced by calculations employing a relaxed-core Hartree-Fock approach. Weak asymmetric features are seen through a plane perpendicular to the molecular axis and attributed to symmetry lowering by anti-symmetric stretching motion.(Some figures in this article are in colour only in the electronic version) Photoelectron angular distributions in the molecular frame (MF-PADs) have been investigated extensively for K-shell photoemission from the diatomic molecules CO and N 2 [1-9]. The MF-PADs for molecules aligned parallel to the electric vector of the linearly polarized light exhibit rich structure in regions of shape resonances and provide a dynamical window on the underlying partial-wave composition of the photoelectron as it scatters off the anisotropic potential of the ion. It is worth noting that the observed MF-PADs for N 2 display reflection

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“…Measurement of the N1s photoelectron spectrum of N 2 as a function of photon energy distinguished the gerade and ungerade components and followed the cross sections for each component separately [61]. A later study confirmed that the shape resonance has σ u symmetry and couples primarily to the σ g channel, but inter-channel coupling leads to resonant behavior even in the σ u channel [62]. The intensity increase in the Auger spectrum at 420 eV reflects the increase in ionization cross section due to the shape resonance affecting the photoelectron channel.…”

Section: Above Threshold Resonancesmentioning

confidence: 80%

Core-level spectroscopy and dynamics of free molecules

Feifel¹,

Piancastelli²

2011

Journal of Electron Spectroscopy and Related Phenomena

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A review of recent results on spectroscopy and dynamics of free molecules is presented. The experimental research reported here is mainly concerned with processes of core excitation and decay of isolated molecules, primarily investigated by resonant Auger spectroscopy. Several examples are shown concerning the interplay of the timescales of electron decay with nuclear motion involving dissociation processes, the occurrence of interference phenomena and recoil. The capability of such studies to reveal subtle details of the light-matter interaction, of the electronic structure and of the evolution of the short-lived states thus created is enlightened.

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Manifestation of Many-Electron Correlations in Photoionization of theKShell ofN2

Cited by 64 publications

References 15 publications

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

Molecular frame photoelectron angular distribution for oxygen 1s photoemission from CO₂molecules

Core-level spectroscopy and dynamics of free molecules

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Manifestation of Many-Electron Correlations in Photoionization of theKShell ofN2

Cited by 64 publications

References 15 publications

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

Molecular frame photoelectron angular distribution for oxygen 1s photoemission from CO2molecules

Core-level spectroscopy and dynamics of free molecules

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Product

Resources

About

Molecular frame photoelectron angular distribution for oxygen 1s photoemission from CO₂molecules