High-Frequency Optical Excitations in YBCO Measured from Differential Optical Reflectivity

Autor:	I. M. Fishman, W. R. Studenmund, Gordon S. Kino
Rok vydání:	2006
Předmět:	Superconductivity Range (particle radiation) Materials science Condensed matter physics Scattering rate Plasma Atmospheric temperature range Reflectivity Visible spectrum Mott transition
Zdroj:	Stripes and Related Phenomena ISBN: 0306464195
DOI:	10.1007/0-306-47100-0_63
Popis:	YBCO differential optical reflectivity (DOR) responses are measured in the temperature range of 50–160 K at several optical frequencies. It is found that the background response relates to temperature variation of the scattering rate. Above Tc the full DOR response may be attributed to a Drude plasma with a low mobility. Below Tc, accumulation of the superconducting condensate is accompanied by appearance of a new optical spectrum in the range of 1.2–1.5 eV. We present a model for a plasma having parameters close to that of a Mott transition that demonstrates qualitatively the features observed experimentally.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fff957f4b6cf19e751813fc54abde816 https://doi.org/10.1007/0-306-47100-0_63 Zobrazit plný text záznamu