Infrared Active Phonons in (La1-xSrx)2CuO4
- 1 September 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (9A), L1517
- https://doi.org/10.1143/jjap.26.l1517
Abstract
Lattice vibrations in (La1-x Sr x )2CuO4 (x=0-0.1) and oxygen deficient La2CuO4 are investigated by infrared reflection spectroscopy. Holes generated by the substitution of Sr and electrons generated by the oxygen deficiency cause a similar change in the infrared spectra. On the assumption of very good two dimensionality, this change is interpreted as the screening of the electric field accompanying the infrared active phonons with polarization in the basal plane. The phonon modes are tentatively assigned.Keywords
This publication has 20 references indexed in Scilit:
- Antiferromagnetism inPhysical Review Letters, 1987
- Isotope Effect in the High- Superconductors Y and EuPhysical Review Letters, 1987
- Temperature and composition dependence of the tetragonal-orthorhombic distortion inPhysical Review B, 1987
- Two-dimensional plasmons in nonstoichiometricPhysical Review B, 1987
- Infrared Spectroscopy in High Tc Superconductors (La1-xSrx)2CuO4Japanese Journal of Applied Physics, 1987
- Raman Study of High Tc Superconductors (La1-xSrx)2CuO4Japanese Journal of Applied Physics, 1987
- Study of the Infrared Properties of (La1-xSrx)2CuO4Japanese Journal of Applied Physics, 1987
- Infrared Spectroscopy of (La1-xMx)2CuO4-y; M=Sr, Ba, K and CeJapanese Journal of Applied Physics, 1987
- Possible highT c superconductivity in the Ba?La?Cu?O systemZeitschrift für Physik B Condensed Matter, 1986
- Über Oxocuprate. XV Zur Kristallstruktur von Seltenerdmetalloxocupraten: La2CuO4, Gd2CuO4Zeitschrift für anorganische und allgemeine Chemie, 1977