Published September 1, 1989
| Version v1
Journal article
Infrared reflectivity spectra of single crystals of La2CuO4
- 1. Institute of Solid State Physics, U.S.S.R. Academy of Sciences, Chernogolovka, Moscow District, 142432, Union of Soviet Socialist Republics (USSR)
- 2. AT ampersand T Bell Laboratories, Murray Hill, New Jersey 07974
- 3. Los Alamos National Laboratory, Los Alamos, New Mexico 87545
Description
Infrared reflectivity spectra of a La2CuO4+x single crystal have been studied over a spectral range of 50--5500 cm-1. Anisotropy of the spectra has been observed, indicating a strong anisotropy of the high-frequency conductivity of the crystal. New lines have been found in the optical-phonon excitation spectra. A classification of lattice optical vibrations has been proposed. Spectral reconstruction has been observed in the phonon region of 370 and 445 cm-1 at T0=220±5 K, which correlates with the antiferromagnetic transition
Additional details
Publishing Information
- Journal Title
- Physical Review, B: Condensed Matter
- Journal Volume
- 40
- Journal Issue
- 7
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 4413-4418
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21013662
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANISOTROPY; CUPRATES; INFRARED RADIATION; LANTHANUM COMPOUNDS; LATTICE VIBRATIONS; MONOCRYSTALS; PHONONS; REFLECTION; SPECTRA
- Descriptors DEC
- COPPER COMPOUNDS; CRYSTALS; ELECTROMAGNETIC RADIATION; OXYGEN COMPOUNDS; QUASI PARTICLES; RADIATIONS; RARE EARTH COMPOUNDS; TRANSITION ELEMENT COMPOUNDS