Published 1987
| Version v1
Book
Energy gap of high-Tc superconductor YBa2Cu3O9-x
- 1. Shanghai Inst. of Technical Physics, Shanghai (China). Lab. of Infrared Physics
- 2. Fudan Univ., Shanghai, SH (China). Dept. of Physics
Description
The far infra-red (IR) reflectances of the high-Tc superconductor YBa2Cu3O9-x(Tc = 90 K) are measured in the frequency range 25-150 cm-1 and the temperature range 4.2 - 200 K. The reflectance curve at 4.2 K rapidly drops near 125 cm-1, whereas the curves at T>90 K go smoothly. Such a superconductor might have an energy gap 2Δ = 15.5 meV, and the ratio 2Δ/ kTc 2.0 is close to that of La-Ba-Cu-O and La-Sr-Cu-O superconductors, but well smaller than the BCS value 3.5. (author). 9 refs, 1 fig
Additional details
Publishing Information
- Publisher
- World Scientific.
- Imprint Place
- Singapore (Singapore)
- ISBN
- 9971-50-399-9; 9971-50-400-6 (pbk)
- Imprint Title
- Proceedings of the Adriatico research conference on high temperature superconductors
- Imprint Pagination
- 527 p.
- Journal Issue
- V. 1
- Series
- Progress in high temperature superconductivity.
- Journal Page Range
- p. 473-477.
Conference
- Title
- Adriatico research conference on high temperature superconductors.
- Dates
- 5-8 Jul 1987.
- Place
- Trieste (Italy).
INIS
- Country of Publication
- Singapore
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 23077707
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- BARIUM; COPPER OXIDES; ENERGY GAP; EXPERIMENTAL DATA; FAR INFRARED RADIATION; GHZ RANGE; HIGH-TC SUPERCONDUCTORS; OPTICAL PROPERTIES; TEMPERATURE RANGE 0000-0013 K; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K; YTTRIUM
- Descriptors DEC
- ALKALINE EARTH METALS; CHALCOGENIDES; COPPER COMPOUNDS; DATA; ELECTROMAGNETIC RADIATION; ELEMENTS; FREQUENCY RANGE; INFORMATION; INFRARED RADIATION; METALS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RADIATIONS; SUPERCONDUCTORS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS