Photoelectron energy-loss functions of SrTiO3, BaTiO3, and TiO2: Theory and experiment
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We compare experimental O 1s electron energy-loss structures below 30 eV of single crystalline SrTiO3 ,BaTiO3, and TiO2 with their theoretical electron energy-loss functions. The photoelectron energy-loss structuresof in situ fractured surface in ultrahigh vacuum can be approximated by a sum of four components forSrTiO3 and BaTiO3, and of three components for TiO2. Electronic structures were calculated from first principlesusing the full-potential linearized augmented plane-wave method in the local-density approximation. Themomentum matrix elements between Bloch functions were evaluated to determine the electron energy-lossfunctions. The theoretical electron energy-loss functions agree well with experimental spectra except a structureat around 20 eV of SrTiO3 and that at around 18 eV of BaTiO3. The difference of high binding energypeaks is explained from the positions of semicore states.
収録刊行物
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- Physical review. Third series. B, Condensed matter and materials physics
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Physical review. Third series. B, Condensed matter and materials physics 65 (8), 085101-1-085101-6, 2002-02-04
Published by the American Physical Society through the American Institute of Physics
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詳細情報 詳細情報について
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- CRID
- 1050001338909730688
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- NII論文ID
- 120002440826
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- NII書誌ID
- AA11187113
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- ISSN
- 24699969
- 10980121
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- HANDLE
- 10228/648
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- IRDB
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