Resonant Photoemission at the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>2</mml:mn><mml:mi mathvariant="italic">p</mml:mi></mml:math>Edges of Ni: Resonant Raman and Interference Effects

Weinelt, Martin; Nilsson, Anders; Magnuson, Martin; Wiell, T.; Wassdahl, N.; Karis, Olof; Föhlisch, Alexander; Mårtensson, Nils; Stöhr, J.; Samant, Mahesh G.

doi:10.1103/physrevlett.78.967

Cited by 118 publications

(84 citation statements)

References 17 publications

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“…The spectra obtained by resonant PES are comparable to those obtained by RXES, with both Raman-like and fluorescence-like (or Auger-like) spectral features at the absorption edge. [46][47][48][49] The intensity in Figs. 6(b) and 6(e) is normalized by the incident photon beam intensity.…”

Section: Resonant Pes For Ybga115si085mentioning

confidence: 99%

Electronic structure of YbGa1.15Si0.85and YbGa
Yamaoka
¹
,
Jarrige
²
,
Tsujii
³

et al. 2011
Phys. Rev. B

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Section: Resonant Pes For Ybga115si085mentioning

confidence: 99%

Electronic structure of YbGa1.15Si0.85and YbGa
Yamaoka
¹
,
Jarrige
²
,
Tsujii
³

et al. 2011
Phys. Rev. B

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“…In resonant photoemission there is an interplay between direct photoemission and Auger-like ͑autoionization͒ processes. 10,18 When the measurements are performed at sufficiently high resolution, it is in many cases possible to distinguish between Augerlike and photoemissionlike processes in the nonradiative decay spectra. 18 Here the core-level binding energy defines the onset of the regular Auger processes.…”

Section: Resultsmentioning

confidence: 99%

“…[12][13][14][15][16] The 6-eV satellite in valence-band spectra has been observed to display Fano-like intensity variations at both the 3p and 2 p core-level thresholds due to interference effects. 17,18 A good understanding of the interesting physical properties of Ni requires detailed spectroscopic studies of the electronic structure performed at sufficiently high resolution.…”

Section: Introductionmentioning

confidence: 99%

Resonant Auger spectroscopy at theL2,3shake-up thresholds as a probe of electron correlation effects in nickel

et al. 1998

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The excitation energy dependence of the three-hole satellites in the L 3 -M 45 M 45 and L 2 -M 45 M 45 Auger spectra of nickel metal has been measured using synchrotron radiation. The satellite behavior in the nonradiative emission spectra at the L 3 and L 2 thresholds is compared and the influence of the Coster-Kronig channel explored. The three-hole satellite intensity at the L 3 Auger emission line reveals a peak structure at 5 eV above the L 3 threshold attributed to resonant processes at the 2p 5 3d 9 shake-up threshold. This is discussed in connection with the 6-eV feature in the x-ray-absorption spectrum. ͓S0163-1829͑98͒07631-0͔

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“…The spectator channel, on the contrary, leads to an Auger-like final state with two holes, and the spectral lines exhibit a normal Auger behaviour. However, often the enhancement of the direct valence band PES is given by the combination of the two different photoemissionlike and Auger-like channels [12,15,[25][26][27] and, in order to distinguish between the two regimes, it is in principle necessary to perform measurements with a photon energy bandwidth smaller than the core linewidth.Exploiting the polarization properties of the light, the angle resolved and spin polarized detection of the decay products can allow in principle to perform highly differential experiments. Several works have been devoted to the study of dichroism in the resonant Auger decay (with focus on the spectator channels), in normal Auger emission and in RIXS [3,[28][29][30][31].…”

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Real-space Green's function approach to angle-resolved resonant photoemission: Spin polarization and circular dichroism in itinerant magnets

Pieve

Krüger

2013

Phys. Rev. B

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A first principles approach, based on the real space multiple scattering Green's function method, is presented for spin-and angle-resolved resonant photoemission from magnetic surfaces. It is applied to the Fe(010) valence band photoemission excited with circularly polarized X-rays around the Fe L3 absorption edge. When the photon energy is swept through the Fe 2p − 3d resonance, the valence band spectra are strongly modified in terms of absolute and relative peak intensities, degree of spin-polarization and light polarization dependence. New peaks in the spin-polarized spectra are identified as spin-flip transitions induced by exchange decay of spin-mixed core-holes. By comparison with single atom and band structure data, it is shown that both intra-atomic and multiple scattering effects strongly influence the spectra. We show how the different features linked to states of different orbital symmetry in the d band are differently enhanced by the resonant effect. The appearance and origin of circular dichroism and spin polarization are analyzed for different geometries of light incidence and electron emission direction, providing guidelines for future experiments.PACS numbers: 78.20. Bh, 78.20.Ls, In the last decade, magnetic circular dichroism (MCD) and spin polarization studies in resonant inelastic X-ray scattering (RIXS) and resonant photoemission (RPES) have acquired great importance in the study of magnetic and correlated materials. Such spectroscopies probe respectively the radiative and non radiative autoionization decay of a core hole, and the signal can be strongly enhanced with respect to the non resonant mode. The element and orbital selectivity of core level resonant spectroscopies allows to access higher order multipoles which are left unexplored by MCD in X-ray absorption (XAS) [1][2][3][4][5][6], to distinguish and enhance specific electronic excitations and satellites [7,8], collective magnetic excitations [9], ultrafast and charge transfer dynamics [10][11][12] and to detect quadrupolar transitions towards localized empty states [13,14]. In particular, RPES has recently been applied to several correlated materials [15][16][17][18][19] and full two dimensional angular scans of resonantly emitted electrons in moderately correlated materials have also been carried out [20,21]. These works, together with earlier pioneering studies [22,23] on local magnetic properties in macroscopically non magnetic systems, demonstrate the importance of RPES and the need for an advancement in the theoretical description of this spectroscopy, which is the main aim of this work.RPES is in principle an autoionization channel of the * Electronic address: fabiana.dapieve@gmail.com more general process called resonant Auger decay. Depending on whether the core-excited electron participates or not in the Auger decay, the process is termed either participator or spectator channel. In the participator channel the one hole final state is degenerate with the one in direct valence band photoemission (PES, or ARPES if angle reso...

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Resonant Photoemission at the2pEdges of Ni: Resonant Raman and Interference Effects

Cited by 118 publications

References 17 publications

Electronic structure of YbGa1.15Si0.85and YbGa
Yamaoka
¹
,
Jarrige
²
,
Tsujii
³

et al. 2011
Phys. Rev. B

Electronic structure of YbGa1.15Si0.85and YbGa
Yamaoka
¹
,
Jarrige
²
,
Tsujii
³

et al. 2011
Phys. Rev. B

Resonant Auger spectroscopy at theL2,3shake-up thresholds as a probe of electron correlation effects in nickel

Real-space Green's function approach to angle-resolved resonant photoemission: Spin polarization and circular dichroism in itinerant magnets

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Resonant Photoemission at the2pEdges of Ni: Resonant Raman and Interference Effects

Cited by 118 publications

References 17 publications

Electronic structure of YbGa1.15Si0.85and YbGaYamaoka1, Jarrige2, Tsujii3 et al. 2011Phys. Rev. B

Electronic structure of YbGa1.15Si0.85and YbGaYamaoka1, Jarrige2, Tsujii3 et al. 2011Phys. Rev. B

Resonant Auger spectroscopy at theL2,3shake-up thresholds as a probe of electron correlation effects in nickel

Real-space Green's function approach to angle-resolved resonant photoemission: Spin polarization and circular dichroism in itinerant magnets

Contact Info

Product

Resources

About

Electronic structure of YbGa1.15Si0.85and YbGa
Yamaoka
¹
,
Jarrige
²
,
Tsujii
³

et al. 2011
Phys. Rev. B

Electronic structure of YbGa1.15Si0.85and YbGa
Yamaoka
¹
,
Jarrige
²
,
Tsujii
³

et al. 2011
Phys. Rev. B