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Calculation of an Enhanced A1g Symmetry Mode Induced by Higgs Oscillations in the Raman Spectrum of High-Temperature Cuprate Superconductors

M. Puviani, A. Baum, S. Ono, Y. Ando, R. Hackl, and D. Manske
Phys. Rev. Lett. 127, 197001 – Published 1 November 2021
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Abstract

In superconductors the Anderson-Higgs mechanism allows for the existence of a collective amplitude (Higgs) mode which can couple to eV light mainly in a nonlinear Raman-like process. The experimental nonequilibrium results on isotropic superconductors have been explained going beyond the BCS theory including the Higgs mode. Furthermore, in anisotropic d-wave superconductors strong interaction effects with other modes are expected. Here we calculate the Raman contribution of the Higgs mode from a new perspective, including many-body Higgs oscillations effects and their consequences in conventional, spontaneous Raman spectroscopy. Our results suggest a significant contribution to the intensity of the A1g symmetry Raman spectrum in d-wave superconductors. In order to test our theory, we predict the presence of measurable characteristic oscillations in THz quench-optical probe time-dependent reflectivity experiments.

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  • Received 14 December 2020
  • Revised 20 May 2021
  • Accepted 30 September 2021

DOI:https://doi.org/10.1103/PhysRevLett.127.197001

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Open access publication funded by the Max Planck Society.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

M. Puviani1,*, A. Baum2, S. Ono3, Y. Ando4, R. Hackl2, and D. Manske1,†

  • 1Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany
  • 2Walther Meissner Institut, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany
  • 3Central Research Institute of Electric Power Industry, Yokosuka, 240-0196 Kanagawa, Japan
  • 4Institute of Physics II, University of Cologne, 50937 Köln, Germany

  • *m.puviani@fkf.mpg.de
  • d.manske@fkf.mpg.de

Comments & Replies

Comment on “Calculation of an Enhanced A1g Symmetry Mode Induced by Higgs Oscillations in the Raman Spectrum of High-Temperature Cuprate Superconductors”

Lara Benfatto, Claudio Castellani, and Tommaso Cea
Phys. Rev. Lett. 129, 199701 (2022)

Puviani et al. Reply:

M. Puviani, A. Baum, S. Ono, Y. Ando, R. Hackl, and D. Manske
Phys. Rev. Lett. 129, 199702 (2022)

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Vol. 127, Iss. 19 — 5 November 2021

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