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
言語種別 英語
発行・発表の年月 2005/11
形態種別 研究論文
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
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