We report on the far-infrared reflectivity and absorptivity of high quality YBa2Cu307\_b thin films. The absorptivity can be characterized by three contributions: free carriers absorption that disappears below T e , an absorption process that sets in near 400 cm-I (21::1/kBT e ;::j 6) and is almost
Microwave losses and far infrared reflectivity of ion irradiated YBa2CU3O7-films
✍ Scribed by M. Lippert; L.P. Strobel; G. Saemann-Iscchenko; J. Orbach; S. HensenG. Muller; H. Piel; J. Schützmann; K.F. Renk; R. Roas; W. Gieres
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 156 KB
- Volume
- 185-189
- Category
- Article
- ISSN
- 0921-4534
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
We report an infrared reflectivity study of epitaxial YBa2Cu307-6 thin films. Results for samples with different values of To, obtained by Fe doping or ion bombardment, give evidence for a gap 2A(0) ~ 7 kBTc. For ion bombarded films we find a soft mode that may correspond to a giant-amplitude oxygen
We report on low temperature far infrared reflection measurements on thin film YBa2CuaOr at magnetic fields up to 15.5 Tesla. Our measurements show for the superconductive state a clear edge in the reflectance near 400 cm -1, which develops into a distinct kink if the temperature is lowered to 1.2 K