Publication details
Pseudogap and precursor superconductivity in underdoped cuprate high temperature superconductors: A far-infrared ellipsometry study
| Authors | |
|---|---|
| Year of publication | 2010 |
| Type | Article in Periodical |
| Magazine / Source | European Physical Journal Special Topics |
| MU Faculty or unit | |
| Citation | |
| Web | http://www.springerlink.com/content/1r41347h055812j2/ |
| Field | Solid matter physics and magnetism |
| Keywords | High-Tc superconductors; infrared response; pseudogap; superconducting fluctuations |
| Description | 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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