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Visualizing superconductivity in a doped Weyl semimetal with broken inversion symmetry
https://oist.repo.nii.ac.jp/records/2288
https://oist.repo.nii.ac.jp/records/228820e1ddef-ab39-4720-82df-abbab0112f0e
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Wang-2021-Visualizing superconductivity in a d (8.3 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2021-09-16 | |||||
| タイトル | ||||||
| タイトル | Visualizing superconductivity in a doped Weyl semimetal with broken inversion symmetry | |||||
| 言語 | en | |||||
| 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_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者（英） |
Wang, Zhenyu
× Wang, Zhenyu× Olivares, Jorge× Namiki, Hiromasa× Pareek, Vivek× Dani, Keshav× Sasagawa, Takao× Madhavan, Vidya× Okada, Yoshinori |
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| 書誌情報 |
en : Physical Review B 巻 104, 号 11, p. 115102, 発行日 2021-09-01 |
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| 抄録 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The Weyl semimetal MoTe₂ offers a rare opportunity to study the interplay between Weyl physics and superconductivity. Recent studies have found that Se substitution can boost the superconductivity up to 1.5 K, but suppresses the T-d structure phase that is essential for the emergence of the Weyl state. A microscopic understanding of the possible coexistence of enhanced superconductivity and the Td phase has not been established so far. Here, we use scanning tunneling microscopy to study an optimally doped superconductor MoTe₁.₈₅Se₀.₁₅ with bulk T-c similar to 1.5K. By means of quasiparticle interference imaging, we identify the existence of a low-temperature Td phase with broken inversion symmetry where superconductivity globally coexists. Furthermore, we find that the superconducting coherence length, extracted from both the upper critical field and the decay of density of states near a vortex, is much larger than the characteristic length scale of the existing chemical disorder. Our findings of robust superconductivity arising from a Weyl semimetal normal phase in MoTe₁.₈₅Se₀.₁₅ make it a promising candidate for realizing topological superconductivity. | |||||
| 出版者 | ||||||
| 出版者 | American Physical Society | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2469-9950 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2469-9969 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1103/PhysRevB.104.115102 | |||||
| 権利 | ||||||
| 権利情報 | ©2021 American Physical Society | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.104.115102 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
