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Carrier Concentration Dependence of Superconducting Gap of Bi2(Sr,La)2CuO6+δ
http://hdl.handle.net/2237/25040
http://hdl.handle.net/2237/25040a260ac4b-032a-4cdc-a677-fe07ed367174
| 名前 / ファイル | ライセンス | アクション |
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67615.pdf ファイル公開：2017-10-15 (928.8 kB)
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| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2016-11-16 | |||||
| タイトル | ||||||
| タイトル | Carrier Concentration Dependence of Superconducting Gap of Bi2(Sr,La)2CuO6+δ | |||||
| 言語 | en | |||||
| 著者 |
Sakamoto, Hideki
× Sakamoto, Hideki× Ogawa, Koto× Kondo, Takeshi× Shin, Shik× Matsunami, Masaharu× Ikuta, Hiroshi× Takeuchi, Tsunehiro |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 権利 | ||||||
| 権利情報 | Copyright ©2016 The Physical Society of Japan 日本物理学会 | |||||
| 言語 | en | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Carrier concentration dependence of the superconducting gap observable around the nodal region was investigated in detail for a series of high-Tc cuprate superconductors, Bi2(Sr,La)2CuO6+δ, by means of ultra-high-resolution laser-induced angle resolved photoemission spectroscopy. We found that the gap can be expressed by the simple d-wave gap form, Δ = Δ0 cos(2θ), at least around the node even in the heavily underdoped samples. The gap size Δ0 increases with decreasing hole concentration in the overdoped region, and starts to decrease after taking a plateau that extends over a relatively wide hole concentration, p, ranging 0.16 ≤ p ≤ 0.26. The critical temperature of superconductivity, Tc, decreases more drastically than Δ0 with decreasing hole concentration. This fact indicates that Tc is not simply determined by Δ0, and we argue that the reduction of Tc with decreasing hole concentration in the underdoped regions is caused by a synergy effect of the decreasing Δ0 and the development of pseudogap. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | 日本物理学会 | |||||
| 言語 | ja | |||||
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| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.7566/JPSJ.85.104710 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0031-9015 | |||||
| 書誌情報 |
en : Journal of the Physical Society of Japan 巻 85, 号 10, p. 104710-104710, 発行日 2016-10 |
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| 著者版フラグ | ||||||
| 値 | author | |||||
| URI | ||||||
| 識別子 | http://doi.org/10.7566/JPSJ.85.104710 | |||||
| 識別子タイプ | DOI | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/25040 | |||||
| 識別子タイプ | HDL | |||||
