The A1g Mode in the Hg-1201 Phonon Spectrum as an Indicator of N→S Transition

Authors

  • Ya. Dovhyj Ivan Franko National University of Lviv

DOI:

https://doi.org/10.15407/ujpe56.10.1011

Keywords:

-

Abstract

By analyzing the structure of and the temperature changes in HgBa2CuO4+y phonon spectra, the electron-phonon coupling constant g has been determined for the first time. It is shown that this compound is a superconductor with strong coupling. A frequency interval around 60.4 meV in the HgBa2CuO4+y phonon spectrum, which may be classed as a "soft mode", is revealed. The dominant partial contribution to the density of phonon states in that spectral range is found to be given by O(2) atomic vibrations.

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Published

2022-02-06

How to Cite

Dovhyj Я. (2022). The A1g Mode in the Hg-1201 Phonon Spectrum as an Indicator of N→S Transition. Ukrainian Journal of Physics, 56(10), 1011. https://doi.org/10.15407/ujpe56.10.1011

Issue

Section

Solid matter