Physics – Condensed Matter – Superconductivity
Scientific paper
2009-04-16
J. Phys.: Conf. Ser. 150, 052278 (2009)
Physics
Condensed Matter
Superconductivity
9 pages, 3 figures. proceedings of the 25th international conference on low temperature physics (LT25)
Scientific paper
10.1088/1742-6596/150/5/052278
We analyze optical spectra of high temperature superconductors using a minimal model of electrons coupled to bosons. We consider the marginal Fermi liquid theory and the spin fluctuation theory, as well as a histogram representation of the bosonic spectral density. We find that the two theories can both be used to describe the experimental data provided that we allow for an additional scattering channel with an energy of 55 meV.
der Marel Dirk van
Heumen Erik van
Kuzmenko Alexey B.
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