Photoexcitation of a Volume Plasmon in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi mathvariant="normal">C</mml:mi><mml:mn>60</mml:mn></mml:msub></mml:math>Ions

Scully, S. W. J.; Emmons, Erik D.; Gharaibeh, M. F.; Phaneuf, R. A.; Kilcoyne, A. L. D.; Schlachter, A. S.; Schippers, S.; Müller, Alfred; Chakraborty, Himadri; Madjet, Mohamed; Rost, Jan M.

doi:10.1103/physrevlett.94.065503

Cited by 142 publications

(214 citation statements)

References 28 publications

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“…Scully et al, were reported in [10]. The authors associated the lower peak near 20 eV with a surface plasmon, its frequency being 3 times smaller than the Langmuir frequency [2].…”

Section: Collective Dipole Oscillation Of Delocalized Electrons In a mentioning

confidence: 93%

“…The authors associated the lower peak near 20 eV with a surface plasmon, its frequency being 3 times smaller than the Langmuir frequency [2]. The other peak (about 40 eV) is associated by the authors with some volume plasmon of unknown origin [10].…”

Section: Collective Dipole Oscillation Of Delocalized Electrons In a mentioning

confidence: 99%

“…Quantum excitation to the first excited level manifests itself as 20 eV peak, to the second one as 40 eV peak. Conception of some volume plasmon of unknown origin [10] is not needed.…”

Section: Collective Dipole Oscillation Of Delocalized Electrons In a mentioning

confidence: 99%

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Semiclassical approach to the description of the basic properties of nanoobjects

Kornyushin

2008

Low Temperature Physics

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Present paper is a review of results, obtained in the framework of semiclassical approach in nanophysics. Semiclassical description, based on Electrostatics and Thomas-Fermi model was applied to calculate dimensions of the electronic shell of a fullerene molecule and a carbon nanotube. This simplified approach yields surprisingly accurate results in some cases. Semiclassical approach provides rather good description of the dimensions of the electronic shell of a fullerene molecule. Two types of dipole oscillations in a fullerene molecule were considered and their frequencies were calculated. Similar calculations were performed for a carbon nanotube also. These results look rather reasonable. Three types of dipole oscillations in carbon nanotube were considered and their frequencies were calculated. Frequencies of the longitudinal collective oscillations of delocalized electrons in carbon peapod were calculated as well. Metallic cluster was modeled as a spherical ball. It was shown that metallic cluster is stable; its bulk modulus and the frequency of the dipole oscillation of the electronic shell relative to the ions were calculated. PACS: 73.63.-b Electronic transport in nanoscale materials and structures.

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“…Scully et al, were reported in [10]. The authors associated the lower peak near 20 eV with a surface plasmon, its frequency being 3 times smaller than the Langmuir frequency [2].…”

Section: Collective Dipole Oscillation Of Delocalized Electrons In a mentioning

confidence: 93%

Section: Collective Dipole Oscillation Of Delocalized Electrons In a mentioning

confidence: 99%

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Semiclassical approach to the description of the basic properties of nanoobjects

Kornyushin

2008

Low Temperature Physics

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“…For a different variety of spectral minima, which are abundant in the photoemission of cluster systems, TDLDA has probed attosecond structures in the emission delay [26]. Other successes of TDLDA include the capture of the full landscape of electronic collective motions in C 60 driven by photon that produce experimentally detected plasmon resonances [27,28]. Very recently, TDLDA has predicted attosecond time delays of the valence photoionizations of C 60 at the giant plasmon resonance that showed negative delay behavior over a range of the resonance, matching the outcome of a simple semiclassical modeling [29].…”

Section: Introductionmentioning

confidence: 99%

Attosecond delay of xenon4dphotoionization at the giant resonance and Cooper minimum

2016

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A Kohn-Sham time-dependent local-density-functional scheme is utilized to predict attosecond time delays of xenon 4d photoionization that involves the 4d giant dipole resonance and Cooper minimum. The fundamental effect of electron correlations to uniquely determine the delay at both regions is demonstrated. In particular, for the giant dipole resonance, the delay underpins strong collective effect, emulating the recent prediction at C60 giant plasmon resonance [T. Barillot et al, Phys. Rev. A 91, 033413 (2015)]. For the Cooper minimum, a qualitative similarity with a photorecombination experiment near argon 3p minimum [S. B. Schoun et al., Phys. Rev. Lett. 112, 153001 (2014)] is found. The result should encourage attosecond measurements of Xe 4d photoemission.

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“…The jellium model is employed for computing the relative delay [35]. This model enjoyed earlier successes in codiscovering with experimentalists a high-energy plasmon resonance [36], interpreting the energy-dependent oscillations in C 60 valence photo-intensities [37], and predicting giant enhancements in the confined atom's photoresponse from the coupling with C 60 plasmons [19]. Significant ground state hybridization of Ar 3p is found to occur with the C 60 3p orbital, resulting in 3p[Ar+C 60 ] and 3p[Ar-C 60 ] from, respectively, the symmetric and antisymmetric wavefunction mixing.…”

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confidence: 99%

Time Delay in the Recoiling Valence Photoemission of Ar Endohedrally Confined inC60

2013

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The effects of confinement and electron correlations on the relative time delay between the 3s and 3p photoemissions of Ar confined endohedrally in C60 are investigated using the time dependent local density approximation -a method that is also found to mostly agree with recent time delay measurements between the 3s and 3p subshells in atomic Ar. At energies in the neighborhood of 3p Cooper minimum, correlations with C60 electrons are found to induce opposite temporal effects in the emission of Ar 3p hybridized symmetrically versus that of Ar 3p hybridized antisymmetrically with C60. A recoil-type interaction model mediated by the confinement is found to best describe the phenomenon.PACS numbers: 32.80. Fb,With the tremendous advancement in technology for generating attosecond (as) isolated pulses as well as attosecond pulse trains, it becomes possible to study fundamental phenomena of light-matter interaction with unprecedented precision on an as timescale [1][2][3]. In particular, the relative time delay between the photoelectrons from different subshells on as timescale, a subject of intense recent activities, is expected to probe important aspects of electron correlations that predominantly influence the photoelectron. Pump-probe experiments have been performed to measure the relative delay in the photoemission processes, where extreme ultra-violet (XUV) pulses are used to remove an electron from a particular subshell and subsequently a weak infrared (IR) pulse accesses the temporal information of the emission event [4].Streaking measurements were carried out to probe photoemission from the valence and the conduction band in single-crystalline magnesium [5] and tungsten [6]. A streaking technique was also employed to measure the relative delay of approximately 21±5 as between the 2s and 2p subshells of atomic Ne at 106 eV photon energy [7]. Despite several theoretical attempts [8][9][10][11][12][13][14] to explain this measured delay in Ne, only about a half of the delay could be reproduced, keeping the time delay in Ne photoemissions still an open problem. Recently, the relative delay between the 3s and 3p subshells in Ar is measured at three photon energies by interferometric technique using attosecond pulses [15,16]. Theoretical methods (e.g. time-dependent nonperturbative method [8], diagrammatic many-body perturbation theory [13], Random phase approximation with exchange (RPAE) [14,16], and multi-configurational Hartree-Fock (MCHF) [17]) have been employed to investigate this relative delay in Ar, although agreements between theory and experiment is rather inconclusive. A ubiquitous understanding in all these studies is the dominant influence of electron correlations to determine the time behavior of outgoing electrons. Thus, it is fair to expect that the process near a Cooper minimum or a resonance will be particularly nuanced.It is therefore of spontaneous interest to extend the study to test the effect of correlations on the temporal photoresponse of atoms in material confinements. A brilliant natura...

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Photoexcitation of a Volume Plasmon inC60Ions

Cited by 142 publications

References 28 publications

Semiclassical approach to the description of the basic properties of nanoobjects

Semiclassical approach to the description of the basic properties of nanoobjects

Attosecond delay of xenon4dphotoionization at the giant resonance and Cooper minimum

Time Delay in the Recoiling Valence Photoemission of Ar Endohedrally Confined inC60

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