Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevLett.102.177004
Title: Two-component dynamics of the order parameter of high temperature Bi2Sr2CaCu2O8+δ superconductors revealed by time-resolved Raman scattering
Authors: Saichu, R.P.
Mahns, I.
Goos, A.
Binder, S.
May, P.
Singer, S.G.
Schulz, B.
Rusydi, A. 
Unterhinninghofen, J.
Manske, D.
Guptasarma, P.
Williamsen, M.S.
Rübhausen, M.
Issue Date: 29-Apr-2009
Source: Saichu, R.P., Mahns, I., Goos, A., Binder, S., May, P., Singer, S.G., Schulz, B., Rusydi, A., Unterhinninghofen, J., Manske, D., Guptasarma, P., Williamsen, M.S., Rübhausen, M. (2009-04-29). Two-component dynamics of the order parameter of high temperature Bi2Sr2CaCu2O8+δ superconductors revealed by time-resolved Raman scattering. Physical Review Letters 102 (17) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.102.177004
Abstract: We study the dynamics of the superconducting order parameter in the high-Tc cuprate Bi2Sr2CaCu2O8+δ by employing a novel time-resolved pump-probe Raman experiment. We find two different coupling mechanisms that contribute equally to the pair-breaking peak. One coupling sets in very fast at 2 ps and relaxes slowly, while the other one is delayed and sets in roughly at 5 ps and relaxes fast. A model that couples holes through phonons is able to reproduce one part of the condensate dynamics; thus, we argue that hole-spin interactions are of importance as well. © 2009 The American Physical Society.
Source Title: Physical Review Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/98473
ISSN: 00319007
DOI: 10.1103/PhysRevLett.102.177004
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