Crystal and electronic structure of high temperature superconducting compound Y1−xCaxBa2Cu3Oy in the temperature interval 80-300 K
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- 作者：Svetlana G. Titovaa ; sgtitova@mail.ru" class="auth_mail" title="E-mail the corresponding author ; Alexey V. Lukoyanovb ; c ; Stepan V. Pryanichnikova ; Lubov A. Cherepanovaa ; Alexander N. Titovb ; c
- 关键词：Superconductors ; Crystal structure ; Electronic band structure ; Thermal expansion
- 刊名：Journal of Alloys and Compounds
- 出版年：2016
- 出版时间：15 February 2016
- 年：2016
- 卷：658
- 期：Complete
- 页码：891-897
- 全文大小：2001 K
文摘
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Crystal structure of Y1−хСахBa2Cu3Oy is studied in temperature range 80–300 K.
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Shrink of the apical Cu–O bond in temperature interval ΔT = 170–225 K is found.
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Electronic structure above, below and within ΔT interval is calculated.
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Electronic states density peak is found within ΔT interval.
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This peak is explained as a result of charge carriers localization.