Item type |
学術雑誌論文 / Journal Article(1) |
公開日 |
2010-01-25 |
タイトル |
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タイトル |
Exciton transition and electronic structure of PbMoO4 crystals studied by polarized light |
言語 |
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言語 |
eng |
DOI |
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関連識別子 |
https://doi.org/10.1002/pssb.200945447 |
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関連名称 |
10.1002/pssb.200945447 |
資源タイプ |
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資源 |
http://purl.org/coar/resource_type/c_6501 |
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タイプ |
journal article |
著者 |
Fujita, M
Itoh, M
Mitani, H
Sangeeta
Tyagi, Mohit
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出版者 |
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出版者 |
WILEY-VCH Verlag GmbH & Co. |
引用 |
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内容記述 |
Physica status solidi. B, Basic solid state physics. 247(2):405-410 (2010) |
書誌情報 |
Physica status solidi. B, Basic solid state physics
巻 247,
号 2,
p. 405-410,
発行日 2010-02
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内容記述 |
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内容記述 |
Published in Physica status solidi. B, Basic solid state physics, Vol. 247, No. 2, pp405-410, 2010. |
抄録 |
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内容記述 |
Polarized reflectivity spectra of PbMoO4 crystals have been measured using synchrotron radiation up to 20 eV. The optical constants for the crystallographic axes are derived by using a Kramers-Kronig analysis. It is found that the exciton band at 3.6 eV shows a doublet structure with distinct dichroism. X-ray photoemission spectroscopy (XPS) and the calculation of the elec-tronic structure by a discrete variational Xα method are also carried out. The calculation shows that the va-lence band and the conduction band are mainly com-posed of the O 2p and Mo 4d states, respectively, and the Pb state contributes appreciably to the top of the valence band and the bottom of the conduction band. The valence-band XPS spectrum of PbMoO4 is com-pared with that of PbWO4, which reveals a remarkable difference between them. This difference reflects dif-ferent magnitude of hybridization of Mo 4d or W 5d state to the valence band. The exciton transition is ex-plained in terms of the cationic Pb 6s → 6p excitation model taking into account the crystal-field splitting and the spin-orbit interaction of Pb 6p state. From a comparison of the doublet structure of the exciton band of PbMoO4 and PbWO4, it is suggested that the electron-hole exchange interaction plays an important role for the exciton transitions in both materials. |
資源タイプ(コンテンツの種類) |
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内容記述 |
Article |
ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0370-1972 |
書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA12238694 |
他の資源との関係:URI |
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関連識別子 |
http://www.interscience.wiley.com/ |
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関連名称 |
http://www.interscience.wiley.com/ |
出版タイプ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |