Electronic structure of some 3D transition-metal pyrites

Folkerts, W.; Sawatzky, G. A.; Haas, C.; Groot, R.A. de; Hillebrecht, F. U.

doi:10.1088/0022-3719/20/26/015

Cited by 141 publications

(63 citation statements)

References 20 publications

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“…5 for the 2p 3/2 region. As the Se content increases, the 2p 3/2 level narrows, consistent with the previous report [24]. In this comparison, the satellite intensity relative to the main peak intensity appears to decrease marginally as x increases.…”

Section: Resultssupporting

confidence: 92%

X-ray photoemission study ofNiS2−xSex
Krishnakumar
¹
,
Sarma
²

2003
Phys. Rev. B
22
5
8
0
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Electronic structure of NiS 2−x Se x system has been investigated for various compositions (x) using x-ray photoemission spectroscopy. An analysis of the core level as well as the valence band spectra of NiS 2 in conjunction with many-body cluster calculations provides a quantitative description of the electronic structure of this compound. With increasing Se content, the on-site Coulomb correlation strength (U ) does not change, while the band width W of the system increases, driving the system from a covalent insulating state to a pd-metallic state.

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Section: Resultssupporting

confidence: 92%

X-ray photoemission study ofNiS2−xSex
Krishnakumar
¹
,
Sarma
²

2003
Phys. Rev. B
22
5
8
0
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“…The band gap of FeS2 is a direct consequence of the filled t 25 band of Fe 3d and can be well explained by the band theory. Indeed, the photoemission and inverse-photoemission spectra of FeS2 agree well with the band-structure calculation [23] as expected, as shown in Fig. 5 [24].…”

Section: Application To Diluted and Concentrated Magnetic Semiconductorssupporting

confidence: 87%

Photoemission Study of the Electronic Structure of Semiconducting Compounds

1999

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We review how the electronic structure of semiconducting compounds is revealed by photoemission spectroscopy. Angle-resolved photoemission spectroscopy is used to study band dispersions and the photon-energy dependence of spectral line shapes is utilized to study atomic orbital origins of the electronic states, namely, the partial density of states. We focus on recent development in the studies of diluted magnetic semiconductors as well as other magnetic semiconductors, in which interaction between the relatively localized transition-metal d states and the extended sp band states plays a key role in characterizing their unique magnetic, transport, and optical properties.

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“…These are also mixed with the S 3pa* states. Folkerts et al (1987) suggest the next band begins at 5.9 eV and is a mixture of Fe 4sp/S 3p states. Hence peaks c and d are assigned to transitions to Fe 4sp states and Fe 4sp/S 3p states, respectively.…”

Section: Resultsmentioning

confidence: 94%

X-ray absorption near-edge spectra of transition metal disulfides FeS2 (pyrite and marcasite), CoS2, NiS2 and CuS2, and their isomorphs FeAsS and CoAsS

et al. 1995

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Abstract. Metal K-and L3-, sulfur K-and arsenic K-and L3-edge X-ray absorption near-edge spectra of a series of metal disulfides, FeS2 (both pyrite and marcasite), COS2, NiS2, and CuS2, and their isomorphs, FeAsS and CoAsS, are presented. The features in this region of these spectra are interpreted using band structure and molecular orbital calculations in terms of the transitions from the ls or 2p3/2 state to unoccupied states. The 3d transition metal L3-edge spectra of these materials show dependence on the degree of multiplet splitting in the final state, and thus offer less information on the electronic ground state. There are substantial differences in the spectra of the isostructural materials, whereas the spectra of the isotopes pyrite and marcasite show several similarities, illustrating the dependence of near-edge region on electronic structure.

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Electronic structure of some 3D transition-metal pyrites

Cited by 141 publications

References 20 publications

X-ray photoemission study ofNiS2−xSex
Krishnakumar
¹
,
Sarma
²

2003
Phys. Rev. B
22
5
8
0
View full text Add to dashboard Cite

X-ray photoemission study ofNiS2−xSex
Krishnakumar
¹
,
Sarma
²

2003
Phys. Rev. B
22
5
8
0
View full text Add to dashboard Cite

Photoemission Study of the Electronic Structure of Semiconducting Compounds

X-ray absorption near-edge spectra of transition metal disulfides FeS2 (pyrite and marcasite), CoS2, NiS2 and CuS2, and their isomorphs FeAsS and CoAsS

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Electronic structure of some 3D transition-metal pyrites

Cited by 141 publications

References 20 publications

X-ray photoemission study ofNiS2−xSexKrishnakumar1, Sarma2 2003Phys. Rev. B22580View full textAdd to dashboardCite

X-ray photoemission study ofNiS2−xSexKrishnakumar1, Sarma2 2003Phys. Rev. B22580View full textAdd to dashboardCite

Photoemission Study of the Electronic Structure of Semiconducting Compounds

X-ray absorption near-edge spectra of transition metal disulfides FeS2 (pyrite and marcasite), CoS2, NiS2 and CuS2, and their isomorphs FeAsS and CoAsS

Contact Info

Product

Resources

About

X-ray photoemission study ofNiS2−xSex
Krishnakumar
¹
,
Sarma
²

2003
Phys. Rev. B
22
5
8
0
View full text Add to dashboard Cite

X-ray photoemission study ofNiS2−xSex
Krishnakumar
¹
,
Sarma
²

2003
Phys. Rev. B
22
5
8
0
View full text Add to dashboard Cite