Published September 10, 1995
| Version v1
Journal article
Infrared active vibrational modes strongly coupled to carriers in high-Tc superconductors
Creators
- 1. Roma-1 Univ. (Italy). Dipartimento di Fisica
- 2. Roma-2 Univ. (Italy). Dipartimento di Ingegneria Meccanica
Description
Infrared active vibrational modes (IRAV), similar to the extra-phonon absorption features which are likely to be responsible for polaron formation in insulating cuprates, have been detected in a metallic Bi2Sr2CuO6 film. The new modes can also be identified in the spectra of superconducting Nd2-xCexCuO4-y and YBa2Cu3O7-y. A comparison with tunnelling results confirms that such IRAV are strongly coupled to the charge carriers. (orig.)
Additional details
Publishing Information
- Journal Title
- Europhysics Letters
- Journal Volume
- 31
- Journal Issue
- 8
- Journal Page Range
- p. 473-478.
- ISSN
- 0295-5075
- CODEN
- EULEEJ
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 27004523
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CERIUM COMPOUNDS; CUPRATES; HIGH-TC SUPERCONDUCTORS; INFRARED SPECTRA; NEODYMIUM COMPOUNDS; PHONONS; POLARONS; STRONTIUM COMPOUNDS; SUPERCONDUCTING FILMS; VIBRATIONAL STATES; YTTRIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; COPPER COMPOUNDS; ENERGY LEVELS; EXCITED STATES; FILMS; OXYGEN COMPOUNDS; QUASI PARTICLES; RARE EARTH COMPOUNDS; SPECTRA; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS