Photoexcited carrier relaxation in a-axis oriented YBa2Cu3O7-δ thin films measured by femtosecond time-resolved spectroscopy
Description
The photoexcited carrier relaxation dynamics in a-axis oriented YBa2Cu3O7-δ (YBCO) thin films has been investigated by femtosecond time-resolved spectroscopy. Distinct responses along b-axis (CuO3 chain) and c-axis of YBCO have been separated by the polarization-dependent femtosecond pump-probe measurements. It is found that the transient reflectivity (ΔR/R) curves for the electric field E of the polarized light parallel to the b- or c-axes of the a-axis oriented YBCO film (E parallel b or E parallel c) are significantly different. The opening of superconducting gap in CuO3 chain was obviously observed from the measurements of the ΔR/R curves for E parallel b at temperatures below Tc. However, the ΔR/R curves for E parallel c did not exhibit the similar characteristics
Additional details
Identifiers
- DOI
- 10.1016/S0921-4534;
- PII
- S092145340202587X;
Publishing Information
- Journal Title
- Physica. C, Superconductivity
- Journal Volume
- 388-389
- Journal Issue
- 2
- Journal Page Range
- p. 477-478
- ISSN
- 0921-4534
- CODEN
- PHYCE6
Conference
- Title
- 23. international conference on low temperature physics
- Acronym
- LT23
- Dates
- 20-27 Aug 2002
- Place
- Hiroshima (Japan)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37074481
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BARIUM COMPOUNDS; CHARGE CARRIERS; CUPRATES; DIAGRAMS; ELECTRIC FIELDS; HIGH-TC SUPERCONDUCTORS; POLARIZATION; REFLECTIVITY; RELAXATION; SPECTROSCOPY; THIN FILMS; TIME RESOLUTION; TRANSIENTS; VISIBLE RADIATION; YTTRIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; COPPER COMPOUNDS; ELECTROMAGNETIC RADIATION; FILMS; INFORMATION; OPTICAL PROPERTIES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RADIATIONS; RESOLUTION; SUPERCONDUCTORS; SURFACE PROPERTIES; TIMING PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS
Optional Information
- Copyright
- Copyright (c) 2003 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.