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Ogasawara, Haruhiko; Kotani, Akio; Potze, R.; Sawatzky, G. A.; Thole, B. T.

doi:10.1103/physrevb.44.5465

Cited by 191 publications

(91 citation statements)

References 14 publications

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“…27 All these peaks are characteristics of the Pr 3+ ions. 25 Figure 3(b) shows the peak deconvolution for the Eu 3d high resolution XPS peaks. The Eu 3d peak consists of two peaks that originated from the spin-orbit splitting, 3d 5/2 and 3d 3/2 of the Eu 2+ oxidation state.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Pr3+ photoluminescence by energy transfer in SrF2 : Eu2+, Pr3+ phosphor

et al. 2016

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Efficient energy transfer was demonstrated in the SrF2 : Eu2+, Pr3+ phosphor synthesized by the co-precipitation method. Results obtained with X-ray diffraction (XRD), scanning electron microscopy (SEM), x-ray spectroscopy (XPS), photoluminescence (PL) and decay curves proposed the UV-Vis energy transfer process. The energy transfer process between the Eu2+ and Pr3+ ions in SrF2 was investigated to evaluate the potential of the Eu2+ ion as a sensitizer for the Pr3+ ion. The results proposed that Eu2+ could be a good sensitizer for absorbing the UV photons and efficiently enhancing the Pr3+ emission intensity. The energy transfer process was effective until concentration quenching for the Pr3+ ions occurred. The concentration quenching was attributed to cross-relaxation between the Pr3+ ions.

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Section: Resultsmentioning

confidence: 99%

Enhanced Pr3+ photoluminescence by energy transfer in SrF2 : Eu2+, Pr3+ phosphor

et al. 2016

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“…4) the peaks at 929.0 eV and 949.6 eV were identified as Pr 3d5/ 2 4f3 and 3d3/24f3 satellites while those at 933.4 eV and 950.4 eV as 3d5/24f 2 and 3d3/24f2 ones. The additional small peaks correspond to Pr203 impurity [21]. The small intensity peak at about 970 eV is the oxygen 1s Auger line [22].…”

Section: Core Levelsmentioning

confidence: 99%

Electronic and Transport Properties of Ragsn (R=Ce,Pr,Nd,Dy) Compounds

et al. 2000

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The electronic structure of the ternary RAgSn (R=Ce,Pr,Nd,Dy) compounds which crystallize in the hexagonal LiGaGe-type structure was studied by X-ray photoemission spectroscopy. Core-levels and valence bands were investigated. The X-ray photoemission spectroscopy valence bands are compared with the ones calculated using the spin-polarized tight-binding linear muffin-tin orbital method. The obtained results indicate that the valence bands are mainly determined by the Ag 4d band. The spin-orbit splitting values Δso determined from the XPS spectra of 3d512 and 3d3/2 are equal to 18.8 eV for R = Ce, 20.2 eV for R = Pr and 22.6 eV for R = Nd. The analysis of these spectra on the basis of the Gunnarsson-Schönhammer model gives a hybridization of f orbitals with the conduction band. The calculation of the total energy for two models of the crystal structure: an ordered of the LiGaGe-type and a disordered one of the CaIn2-type indicate that in these compounds 'the LiGaGe-type structure is stable. Additionally, the temperature dependences of the electrical resistivity of CeAgSn and DyAgSn are investigated. At high temperatures the resistivity is not a linear function of temperature which indicates an electron-phonon interaction in the presence of a small s-d scattering, whereas at low temperatures anomalies connected with the magnetic phase transitions are observed.

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“…The Pr3d 3/2 has an additional peak on the tail of the main line on the high binding energy side (peak T), which can be also attributed to a shake-up process. The doublet Pr3d at about 947.3 eV and 964.6 eV (peaks F) may be attributed to the 4f 1 final state [23,24], which can indicate the presence of Pr 4+ ions. Intensity of the Pr 4+ peak is ∼6 % of the total intensity.…”

Section: Resultsmentioning

confidence: 99%

“…5) of PrAlO 3 can be compared to that observed for Pr 2 O 3 [11]. The complex shape originates from the simultaneous effect of solid state hybridization and intra-atomic electrostatic coupling between 3d hole and outer unpaired 4f electrons [23]. The Pr3d 3/2 and 3d 5/2 lines are split due to final state configurations of 4f 3 L 2 (L-hole on the O2p valence band) on the low binding energy side (peaks S) and of the 4f 2 L on the high energy side (peaks M) [23].…”

Section: Resultsmentioning

confidence: 99%

“…The complex shape originates from the simultaneous effect of solid state hybridization and intra-atomic electrostatic coupling between 3d hole and outer unpaired 4f electrons [23]. The Pr3d 3/2 and 3d 5/2 lines are split due to final state configurations of 4f 3 L 2 (L-hole on the O2p valence band) on the low binding energy side (peaks S) and of the 4f 2 L on the high energy side (peaks M) [23]. The Pr3d 3/2 has an additional peak on the tail of the main line on the high binding energy side (peak T), which can be also attributed to a shake-up process.…”

Section: Resultsmentioning

confidence: 99%

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Magnetic properties of manganese doped PrAlO3 monocrystalline fibres

Guzik

Talik

Pajączkowska

et al. 2014

Materials Science-Poland

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Monocrystalline fibres of undoped PrAlO 3 and PrAlO 3 :0.1 Mn, have been grown by the pulling-down method under nitrogen atmosphere. The as-grown crystal doped with Mn had a visible brown core surrounded by a green ring, whereas this effect was weaker for the undoped PrAlO 3 . A coloration of the brown core was caused by a presence of Pr 4+ ions. The presence of the Pr 4+ ions was confirmed by XPS and magnetic studies. The XPS chemical analysis showed the increased concentration of oxygen in the crystals with the brown core. The most probable valency of manganese is Mn 4+ . It is located in Al 3+ sites.

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Praseodymium 3d- and 4d-core photoemission spectra ofPr2O3

Cited by 191 publications

References 14 publications

Enhanced Pr3+ photoluminescence by energy transfer in SrF2 : Eu2+, Pr3+ phosphor

Enhanced Pr3+ photoluminescence by energy transfer in SrF2 : Eu2+, Pr3+ phosphor

Electronic and Transport Properties of Ragsn (R=Ce,Pr,Nd,Dy) Compounds

Magnetic properties of manganese doped PrAlO3 monocrystalline fibres

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