| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-06-05 |
| タイトル |
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タイトル |
Synthesizing 2h/e2 resistance plateau at the first Landau level confined in a quantum point contact |
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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 |
Mohammad Hamzah Fauzi
Keita Nakagawara
Katsushi Hashimoto
Naokazu Shibata
Yoshiro Hirayama
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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 |
A comprehensive understanding of quantum Hall edge transmission, especially a hole-conjugate of a Laughlin state such as a 2/3 state, is critical for advancing fundamental quantum Hall physics and enhancing the design of quantum Hall edge interferometry. In this study, we show a robust intermediate 2h/e2 resistance quantization in a quantum point contact (QPC) when the bulk is set at
the fractional filling 2/3 quantum Hall state. Our results suggest the occurrence of two equilibration processes. First, the co-propagating 1/3 edges moving along a soft QPC arm confining potential fully equilibrate and act as a single 2/3 edge mode. Second, the 2/3 edge mode is further equilibrated with an integer 1 edge mode formed in the QPC. The complete mixing between them results in a diagonal resistance value quantized at 2h/e2. Similar processes occur for a bulk filling 5/3, leading to an intermediate (2/3)h/e2 resistance quantization. This finding highlights the importance of understanding the equilibration mechanisms that occur between different edge modes, offering insights into the processes of edge equilibration. |
| 書誌情報 |
Communications Physics
巻 6,
p. 365-1-365-6,
発行日 2023-12
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| 出版者 |
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出版者 |
Springer Nature |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2399-3650 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1038/s42005-023-01491-8 |
