Please use this identifier to cite or link to this item:
Title: Theory of ultrafast quasiparticle dynamics in high-temperature superconductors : the dependence on pump fluence
Authors: Prasankumar, Rohit P.
Taylor, Antoinette J.
Chia, Elbert E. M.
Tao, Jianmin
Zhu, Jian-Xin
Keywords: DRNTU::Science::Physics
Issue Date: 2012
Source: Tao, J., Prasankumar, R. P., Chia, E. E. M., Taylor, A. J., & Zhu, J.- X. (2012). Theory of ultrafast quasiparticle dynamics in high-temperature superconductors: The dependence on pump fluence. Physical Review B, 85(14), 144302-.
Series/Report no.: Physical review B
Abstract: We present a theory for the time-resolved optical spectroscopy of high-temperature superconductors at high excitation densities with strongly anisotropic electron-phonon coupling. A signature of the strong coupling between the out-of-plane, out-of-phase O-buckling mode (B1g) and electronic states near the antinode is observed as a higher-energy peak in the time-resolved optical conductivity and Raman spectra, while no evidence of strong coupling between the in-plane Cu-O-breathing mode and nodal electronic states is observed. More interestingly, it is observed that under appropriate conditions of pump fluence, this signature exhibits a reentrant behavior with time delay, following the fate of the superconducting condensate.
DOI: 10.1103/PhysRevB.85.144302
Rights: © 2012 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at the following official DOI: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

Files in This Item:
File Description SizeFormat 
21. Theory of ultrafast quasiparticle dynamics.pdf
455.17 kBAdobe PDFThumbnail

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.