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STUDY OF THE INFRARED PROPERTIES OF (LA1-XSRX)2CUO4
被引：17
作者：
SAWADA, H
SAITO, Y
IWAZUMI, T
YOSHIZAKI, R
ABE, Y
MATSUURA, E
机构：
[1] Univ of Tsukuba, Sakura-mura, Jpn, Univ of Tsukuba, Sakura-mura, Jpn
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS
|
1987年
/
26卷
/
04期
关键词：
LANTHANUM COMPOUNDS - SPECTROSCOPY;
INFRARED;
D O I：
10.1143/JJAP.26.L426
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Reflectivity and transmission spectra of La//1// minus //xSr//x)//2CuO//4 were measured in the spectral range of 20-4800 cm** minus **1. The intensity of the absorption peak around 255 cm** minus **1 became twice with lowering temperature from 298 to 19 K accompanying weak softening, while the Cu-O asymmetric stretching mode at 510 cm** minus **1 was almost unchanged both in its energy and intensity. The origin of the soft-phonon mode is discussed.
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页码：L426 / L428
页数：3
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