Temperature Dependence of the Infrared Properties of SmB6

Autor:	Y. Paderno, N. Hudáková, N. Y. Shitsevalova, Karol Flachbart, Pavol Farkašovský
Rok vydání:	2004
Předmět:	Range (particle radiation) Materials science Condensed matter physics Infrared business.industry Band gap General Physics and Astronomy Infrared spectroscopy Optical conductivity Reflectivity Spectral line Optoelectronics business Single crystal
Zdroj:	Czechoslovak Journal of Physics. 54:339-342
ISSN:	1572-9486 0011-4626
DOI:	10.1007/s10582-004-0096-1
Popis:	Infrared reflectivity measurements on a single crystal of SmB6 have been performed over the energy range from 1.5 to about 1000 meV at temperatures between 4.2 and 300 K. Standard Kramers-Kronig analysis has been made to receive the optical conductivity from measured reflectivity data. The resultant spectra show an increase of optical conductivity in the far-infrared region indicating a semiconductor-metal transition at finite temperature. In particular, we have found that the energy gap of SmB6 decreases with increasing temperature and vanishes at approximately 40 K.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e8ae46304c80fab248fa7cc9dec9e13f https://doi.org/10.1007/s10582-004-0096-1 Zobrazit plný text záznamu Full text from SpringerLink