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Unsupervised Clustering of Spatially-resolved ARPES Data
https://repo.qst.go.jp/records/82961
https://repo.qst.go.jp/records/829615523a67f-c419-42ab-b1b1-98b9c53f11b0
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-06-10 | |||||
| タイトル | ||||||
| タイトル | Unsupervised Clustering of Spatially-resolved ARPES Data | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Hideaki, Iwasawa
× Hideaki, Iwasawa× Tetsuro, Ueno× Masui, Takahiko× Tajima, Setsuko× Hideaki, Iwasawa× Tetsuro, Ueno |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Angle-resolved photoemission spectroscopy (ARPES) is a powerful experimental technique in modern materials science because it can directly probe electronic states, which are directly related to the physical properties of materials. Among the advanced ARPES techniques, spatially-resolved ARPES has recently attracted growing interest because of its capability to obtain local electronic information at the micro- or nano-metric length scales by utilizing a well-focused light source [1]. On the other hand, it is not trivial to analyze and understand the spatial variation of electronic states against massive datasets, typically in 4-dimensional space (energy, momentum, and two spatial axes). In this work, we present unsupervised clustering analyses based on K-means and Fuzzy-c-means methods on spatially-resolved micro-ARPES data from Y-based high-Tc cuprate superconductor YBa2Cu3O7-δ, which shows spatial inhomogeneity due to multiple surface terminations due to BaO or CuO layers on a cleavage (001) plane [2]. The performance of the clustering analyses will be demonstrated with the comparison of the conventional analysis method. [1] Hideaki Iwasawa, Electronic Structure 2, 043001 (2020). [2] H. Iwasawa et al., Phys. Rev. B 98, 081112(R) (2018). |
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| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The 11th New Generation in Strongly Correlated Electron Systems | |||||
| 発表年月日 | ||||||
| 日付 | 2021-06-09 | |||||
| 日付タイプ | Issued | |||||
