Infrared Active Phonons in (La_<1-x>Sr_x)_2CuO_4
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概要
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Lattice vibrations in (La_<1-x>Sr_x)_2CuO_4 (x=0-0.1) and oxygen deficient La_2CuO_4 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.
- 社団法人応用物理学会の論文
- 1987-09-20
著者
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Sugai Shunji
Department Of Physics Division Of Material Science Nagoya University
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Sugai Shunji
Department of Physics, Faculty of Science, Osaka University
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