IR-absorption study of H and D-impurities in BaTiO3 crystals

IR-absorption study of H and D-impurities in BaTiO3 crystals
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BaTiO3 晶体中 H 和 D 杂质的红外吸收研究

DOI:
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发表时间:
1981
期刊:
影响因子:
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通讯作者:
G. Weber
G. Weber
中科院分区:
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文献类型:
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作者:
S. Kapphan;G. Weber

文献摘要

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摘要在极化BaTiO_3单晶中,由于OH-振动引起的五个能带的温度依赖性和偏振性给出了氢在主体晶格中位置的微观模型。根据OH的泛音频率和OH/OD伸缩振动的各向同性位移,推导出非简谐对局域振动的贡献值。
Abstract The temperature dependence and polarization of five bands due to OH-vibrations in poled BaTiO3 single crystals yield information leading to a microscopic model for the position of the hydrogen in the host lattice. Values for the anharmonic contribution to the localized oscillation are deduced from the overtone frequency of OH and the isotrope shift of the OH/OD stretching vibration.