Phys. Rev. B 72, 172511 (2005) [4 pages]Strong-coupling effects in cuprate high-Tc superconductors by magneto-optical studiesReceived 25 July 2005; published 23 November 2005 Signatures of strong coupling effects in cuprate high-Tc 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-Tc superconductor YBa2Cu3Oy (YBCO). Infrared data are directly compared with earlier inelastic neutron scattering results by Dai et al. Nature (London) 406 965 (2000) revealing a characteristic depression of the magnetic resonance in H∥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. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.72.172511
DOI:
10.1103/PhysRevB.72.172511
PACS:
74.72.Bk, 74.25.Gz
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.