Informace o publikaci
Pseudogap and precursor superconductivity in underdoped cuprate high temperature superconductors: A far-infrared ellipsometry study
| Autoři | |
|---|---|
| Rok publikování | 2010 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | European Physical Journal Special Topics |
| Fakulta / Pracoviště MU | |
| Citace | |
| www | http://www.springerlink.com/content/1r41347h055812j2/ |
| Obor | Fyzika pevných látek a magnetismus |
| Klíčová slova | High-Tc superconductors; infrared response; pseudogap; superconducting fluctuations |
| Popis | With the technique of infrared ellipsometry we performed a detailed study of the temperature- and doping dependence of the c-axis response of a series of YBa2Cu3O7-delta single crystals. In particular, we explored the anomalous electronic properties at temperatures above the macroscopic superconducting transition temperature, Tc, whose conflicting explanations range from a precursor superconducting state to electronic correlations that compete with superconductivity. We show that the c-axis spectra provide evidence that both kinds of correlations are present and that their contributions can be disentangled based on an analysis with a so-called multilayer model. |
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