Study of the Infrared Properties of (La1-xSrx)2CuO4
- 1 April 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (4A), L426-428
- https://doi.org/10.1143/jjap.26.l426
Abstract
Reflectivity and transmission spectra of (La1-x Sr x )2CuO4 were measured in the spectral range of 20-4800 cm-1. The intensity of the absorption peak around 255 cm-1 became twice with lowering temperature from 298 to 19 K accompanying weak softening, while the Cu-O asymmetric stretching mode at 510 cm-1 was almost unchanged both in its energy and intensity. The origin of the soft-phonon mode is discussed.Keywords
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