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セガワ コウジ
SEGAWA KOJI
瀬川 耕司 所属 京都産業大学 理学部 物理科学科 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2001/08 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Zn-doping effect on the normal-state charge transport in untwinned YBa2CU3O7-delta single crystals at low temperatures |
| 執筆形態 | その他 |
| 掲載誌名 | PHYSICA C |
| 掲載区分 | 国外 |
| 出版社・発行元 | ELSEVIER SCIENCE BV |
| 巻・号・頁 | 357,pp.30-33 |
| 著者・共著者 | K Segawa,Y Ando |
| 概要 | The in-plane normal-state resistivity rho (a) of Zn-doped untwinned YBa2Cu3O7-delta (YBCO) single crystals is measured down to low temperatures by suppressing superconductivity with magnetic fields up to 18 T. Zn impurities in the CuO2 planes are found to induce an unusual upturn in rho (a)(T) in "clean" samples with k(Gamma)l similar or equal to 7. Such an upturn is observed only in the samples with oxygen contents of y less than or equal to 6.75, which suggests that a metal-insulator crossover takes place at the oxygen content of y similar to 6.75 in YBCO. (C) 2001 Elsevier Science B.V. All rights reserved. |
| DOI | 10.1016/S0921-4534(01)00188-5 |
| ISSN | 0921-4534 |
| PermalinkURL | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0035421670&origin=inward |