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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 | 2005/11 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Strong-coupling effects in cuprate high-T-c superconductors by magneto-optical studies |
| 執筆形態 | その他 |
| 掲載誌名 | PHYSICAL REVIEW B |
| 掲載区分 | 国外 |
| 出版社・発行元 | AMERICAN PHYSICAL SOC |
| 巻・号・頁 | 72(17) |
| 著者・共著者 | YS Lee,ZQ Li,WJ Padilla,SV Dordevic,CC Homes,K Segawa,Y Ando,DN Basov |
| 概要 | Signatures of strong coupling effects in cuprate high-T-c superconductors have been authenticated through a variety of spectroscopic probes. However, the microscopic nature of relevant excitations has not been agreed upon. Here, we report on magneto-optical studies of the CuO2 plane carrier dynamics in a prototypical high-T-c superconductor YBa2Cu3Oy (YBCO). Infrared data are directly compared with earlier inelastic neutron scattering results by Dai [Nature (London) 406, 965 (2000)] revealing a characteristic depression of the magnetic resonance in H parallel to c field less than 7 T. This analysis has allowed us to critically assess the role of magnetic degrees of freedom in producing strong-coupling effects for YBCO system. |
| DOI | 10.1103/PhysRevB.72.172511 |
| ISSN | 1098-0121 |
| PermalinkURL | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=29544445025&origin=inward |