Multiplet Splitting of Metal-Atom Electron Binding Energies

Fadley, C. S.; Shirley, D. A.

doi:10.1103/physreva.2.1109

Cited by 435 publications

(127 citation statements)

References 17 publications

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“…For Fe metal, it is reported that the 3s splitting remain identical in both the ferromagnetic as well as in the paramagnetic phase [62,63]. Hence, the signature of the exchange splitting will give the information of the local moment present in the system [62,63]. In figure 7(a) the exchange splitting (∆E) of Fe 3s peak for Fe metal and FeAl are shown.…”

Section: Resultsmentioning

confidence: 99%

Electronic structure of FeAl alloy studied by resonant photoemission spectroscopy and Ab initio calculations

Mondal

Banik

Kamal

et al. 2016

Journal of Alloys and Compounds

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Abstract. Resonant photoemission spectroscopy has been used to investigate the character of Fe 3d states in FeAl alloy. Fe 3d states have two different character, first is of itinerant nature located very close to the Fermi level, and second, is of less itinerant (relatively localized character), located beyond ∼2 eV below the Fermi level. These distinct states are clearly distinguishable in the resonant photoemission data. Comparison between the results obtained from experiments and first principle based electronic structure calculation show that the origin of the itinerant character of the Fe 3d states is due to the ordered B2 structure, whereas the relatively less itinerant (localized) Fe 3d states are from the disorders present in the sample. The exchange splitting of the Fe 3s core level peak confirms the presence of local moment in this system. It is found that the itinerant electrons arise due to the hybridization between Fe 3d and Al 3s − 3p states. Presence of hybridization is observed as a shift in the Al 2p core-level spectra as well as in the X-ray near edge absorption spectra towards lower binding energy. Our photoemission results are thus explained by the co-existence of ordered and disordered phases in the system.

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Section: Resultsmentioning

confidence: 99%

Electronic structure of FeAl alloy studied by resonant photoemission spectroscopy and Ab initio calculations

Mondal

Banik

Kamal

et al. 2016

Journal of Alloys and Compounds

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“…In 3d transition metal compounds, a well separated satellite by spin-exchange interaction can only be seen for the 3s orbital. This is because the multiplet effect in the 3s spectrum is less prominent than in the other core-level spectra and the magnitude of the exchange integral between the 3d and each core-level is the largest for the 3s level [14,15,16]. Then, we also deconvoluted this small peak into two components corresponding to the Mn(1) and Mn(2) components by assuming a relative intensity of 2:3.…”

Section: Resultsmentioning

confidence: 99%

Bulk-sensitive photoemission of Mn5Si3

Irizawa

Yamasaki

Okazaki

et al. 2002

Solid State Communications

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We have carried out a bulk-sensitive high-resolution photoemission experiment on Mn 5 Si 3 . The measurements are performed for both core level and valence band states. The Mn core level spectra are deconvoluted into two components corresponding to different crystallographic sites. The asymmetry of each component is of noticeable magnitude. In contrast, the Si 2p spectrum shows a simple Lorentzian shape with low asymmetry. The peaks of the valence band spectrum correspond well to the peak positions predicted by the former band calculation.

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“…Figure 3 shows bulk-sensitive HAXPES measurements of the Mn 3s multiplet-split spectra for the Pt-capped coherently-strained CaMnO3 films. In 3d transition metals, the 3s core-level splitting arises due to the exchange coupling interaction between the 3s core-hole and 3d electrons and due to the intrashell 3d charge transfer process 37,38 . As the valence state of the Mn ion tends to decrease, the energy splitting between the two Mn 3s multiplet components increases 38,39 .…”

Section: Textmentioning

confidence: 99%

Strain-Engineered Oxygen Vacancies in CaMnO₃ Thin Films

et al. 2017

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We demonstrate a novel pathway to control and stabilize oxygen vacancies in complex transition-metal oxide thin films. Using atomic layer-by-layer pulsed laser deposition (PLD) from two separate targets, we synthesize high-quality singlecrystalline CaMnO 3 films with systematically varying oxygen vacancy defect formation energies as controlled by coherent tensile strain. The systematic increase of the oxygen vacancy content in CaMnO 3 as a function of applied in-plane strain is observed and confirmed experimentally using high-resolution soft X-ray absorption spectroscopy (XAS) in conjunction with bulk-sensitive hard X-ray photoemission spectroscopy (HAXPES). The relevant defect states in the densities of states are identified and the vacancy content in the films quantified using the combination of first-principles theory and core−hole multiplet calculations with holistic fitting. Our findings open up a promising avenue for designing and controlling new ionically active properties and functionalities of complex transition-metal oxides via strain-induced oxygen-vacancy formation and ordering.

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Multiplet Splitting of Metal-Atom Electron Binding Energies

Cited by 435 publications

References 17 publications

Electronic structure of FeAl alloy studied by resonant photoemission spectroscopy and Ab initio calculations

Electronic structure of FeAl alloy studied by resonant photoemission spectroscopy and Ab initio calculations

Bulk-sensitive photoemission of Mn5Si3

Strain-Engineered Oxygen Vacancies in CaMnO₃ Thin Films

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Multiplet Splitting of Metal-Atom Electron Binding Energies

Cited by 435 publications

References 17 publications

Electronic structure of FeAl alloy studied by resonant photoemission spectroscopy and Ab initio calculations

Electronic structure of FeAl alloy studied by resonant photoemission spectroscopy and Ab initio calculations

Bulk-sensitive photoemission of Mn5Si3

Strain-Engineered Oxygen Vacancies in CaMnO3 Thin Films

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Strain-Engineered Oxygen Vacancies in CaMnO₃ Thin Films