書誌事項
- タイトル別名
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- Charge-density Wave Phase Transitions on Crystal Surfaces
- ケッショウ ヒョウメン ニ オケル デンカ ミツドハソウ テンイ
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説明
Critical behavior and structural change during the phase transitions of charge-density-wave (CDW) states on In/Cu(001) and In/Si(111) have been studied by surface X-ray diffraction (SXRD). The In/Cu(001) surface exhibits critical behavior of the two-dimensional Ising model, indicating an order-disorder transition at T=345 K, ∼60 K lower than the electronic metal-insulator transition (MIT). It has been found that the scale-down of lattice correlation to the CDW correlation length (∼60 Å) causes instability of the CDW state, giving rise to MIT. For In/Si(111), the superstructure spot belonging to CDW shows an intensity drop in a temperature range (115-125 K) where MIT also takes place without critical scattering and with concomitant intensity increase of the other spot. Considering other experimental and theoretical results, we suggest a pseudo-first-order transition mechanism.
収録刊行物
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- 表面科学
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表面科学 33 (9), 513-518, 2012
公益社団法人 日本表面科学会
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詳細情報 詳細情報について
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- CRID
- 1390001206457928320
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- NII論文ID
- 130004486778
- 10031068537
- 40019432898
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- NII書誌ID
- AN00334149
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- ISSN
- 18814743
- 03885321
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- NDL書誌ID
- 023980503
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可