%0 Journal Article %T Measurement of the energy gap in the compound YBaCu[sub:3]O[sub:9-δ] on the basis of the IR absorption spectrum %A Gershenzon, E. M. %A Gol'tsman, G. N. %A Karasik, B. S. %A Semenov, A. D. %J JETP Lett. %D 1987 %V 46 %N 5 %F Gershenzon_etal1987 %O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1703), last updated on Fri, 28 May 2021 16:04:53 -0500 %X For the first time the long-wave infrared absorption spectrum has been measured by means of the bolometric effect and energy gap for high-temperature superconducting ceramics YBa/sub 2/Cu/sub 3/O/sub 9-delta/ has been determined from absorption threshold. 2delta/kT/sub c/ value is equal to 0.6. %K YBCO HTS detectors %U http://jetpletters.ru/ps/1228/article_18550.shtml %P 237-238