Published July 1990
| Version v1
Journal article
Optical functions and band energy of YBa2Cu3O7-δ single crystals
Creators
- 1. L'vovskij Gosudarstvennyj Univ., Lvov (Ukrainian SSR)
Description
The reflection spectra of the YBa2Cu3O7-δ crystals were measured at the room and liquid nitrogen temperatures in the range of 1-6 eV. The optical functions ε1(E) and ε2(E) are calculated from the data obtained. The maxima are found at 3.02 eV; 3.40 eV; 3.74 eV. The band with a peak at 1.7 eV is the most sensitive to the temperature change. The intensity of this peak grows with a decrease of the temperature by 20%, while intensity of another peak at 4.08. eV grows only by 5%. To compare better and identity the obtained spectra, the reflection spectra of CuO crystals have been measured and respective optical functions calculated
Additional details
Additional titles
- Original title (Ukrainian)
- Optichnyi funktsyiyi ta zonna struktura monokristalyiv YBa
Publishing Information
- Journal Title
- Ukrainskij Fizicheskij Zhurnal
- Journal Volume
- 35
- Journal Issue
- 7
- Series
- Ukr. Fiz. Zh.
- Journal Page Range
- 1061-1064
- ISSN
- 0503-1265
- CODEN
- UFIZA
INIS
- Country of Publication
- Ukraine
- Country of Input or Organization
- Ukraine
- INIS RN
- 22071969
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM COMPOUNDS; CUPRATES; EV RANGE 01-10; LOW TEMPERATURE; MEDIUM TEMPERATURE; MONOCRYSTALS; OPTICAL PROPERTIES; TEMPERATURE DEPENDENCE; VISIBLE SPECTRA; YTTRIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; COPPER COMPOUNDS; CRYSTALS; ENERGY RANGE; EV RANGE; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SPECTRA; TRANSITION ELEMENT COMPOUNDS