| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-11-06 |
| タイトル |
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タイトル |
Visualization of spatial inhomogeneity in the superconducting gap using micro-ARPES |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
宮井雄大
石田茂之
小澤健一
吉田良行
永崎洋
島田賢也
Iwasawa Hideaki
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Electronic inhomogeneity arises ubiquitously as a consequence of adjacent and/or competition of multiple phases or orders in strongly correlated electron systems. Gap inhomogeneity in high-Tc cuprate superconductors has been widely observed using scanning tunneling microscopy/spectroscopy, while it has yet been evaluated by angle-resolved photoemission spectroscopy (ARPES), due to difficulty in realizing the compatibility of high energy and spatial resolutions. Here, we employ high-resolution spatially-resolved ARPES with a micrometric beam (micro-ARPES) to reveal the spatial dependence of the antinodal electronic states of optimally-doped Bi2Sr2CaCu2O8+δ. We extend detailed spectral lineshape analysis to the spatial mapping dataset, to quantify and map the superconducting gap and single-particle scattering rate. We demonstrate that gap inhomogeneity is identified at the micro-scale, together with the statistical evaluation of such physical parameters and their correlations. Our results suggest that high-resolution spatially-resolved ARPES holds promise for facilitating the data-driven approach to unraveling complexity and uncovering a key parameter for formulating the mechanism of various physical properties of materials. |
| 書誌情報 |
Science and Technology of Advanced Materials
巻 25,
号 1,
p. 2379238,
発行日 2024-11
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| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1080/14686996.2024.2379238 |
