STUDIES OF THE RESIDUAL ABSORPTION OF A BI2SR2CACU2O8-CRYSTAL AT THZ FREQUENCIES(DELTA SINGLE)

Authors
BAROWSKI HS ARNOLD A PRENNINGER M BUCKLEY RG RENK KF
Citation
Hs. Barowski et al., STUDIES OF THE RESIDUAL ABSORPTION OF A BI2SR2CACU2O8-CRYSTAL AT THZ FREQUENCIES(DELTA SINGLE), Journal of low temperature physics, 105(3-4), 1996, pp. 785-790
Citations number
13
Categorie Soggetti
Physics, Applied
Journal title
Journal of low temperature physics → ACNP
ISSN journal
00222291
Volume
105
Issue
3-4
Year of publication
1996
Pages
785 - 790
Database
ISI
SICI code
0022-2291(1996)105:3-4<785:SOTRAO>2.0.ZU;2-Q
Abstract
We measured the residual absorption of a Bi2Sr2CaCu2O8+delta single cr ystal at low temperature in the frequency range between 0.6 THz and 4. 2 THz using a new method, photothermal interference spectroscopy. By c ombining with reflectivity data obtained with a Fourier-transform IR s pectrometer (frequency range: 3 THz to 100 THz) we have calculated the dynamical conductivity using a Kramers-Kronig-transformation. The res ults are compared with calculations of the far infrared conductivity a nd show qualitative features expected for a superconductor with nodes in the gap.