这就是晶体中的声学模。
总结了ABO3型氧化物可能具有的各种晶体结构类型，以及由此产生的宏观电、光、声学性能。
All kinds of ABO3-type oxides are summarized, including various crystal structure and their electrical, optical, acoustics properties.
有些极性晶体，电子与表面光学声子（SO）耦合强，与表面声学声子（SA）耦合弱。
There is weak coupling between the electron and SA phonon but strong coupling between the electron and SO phonon for many polar crystals .
声子晶体是一种新型的声学功能材料，对声子晶体的研究引起了国内外研究机构的高度关注。
Phononic crystals was a novel type of acoustic functional materials, which was being widely studied by many research institution all over the world.
以最根本的铌酸锂晶体晶胞结构为出发点对铌酸锂晶体的声学、光学以及声光性质进行了推导和描述。
Based upon the study of the unit cell structure of LN, the acoustic property and the optical property and the acoustooptic property are analyzed and presented.
给出了各晶系晶体一般声学模及高对称方向纯模的散射张量转动修正的确切形式。
The exact rotational correction of the scattering tensor related to general acoustic modes and pure modes in the higher symmetry directions, for different crystal systems, is presented.
给出了各晶系晶体一般声学模及高对称方向纯模的散射张量转动修正的确切形式。
The exact rotational correction of the scattering tensor related to general acoustic modes and pure modes in the higher symmetry directions, for different crystal systems, is presented.
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