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中国物理学会期刊
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Jahn-Teller效应和LiNbO3的结构相变(Ⅱ)

物理学报, 1991, 40(8): 1313-1319.
DOI: 10.7498/aps.40.1313
CSTR: 32037.14.aps.40.1313

JAHN-TELLER EFFECT AND THE STRUCTURAL PHASE TRANSITIONS IN LiNbO3 (II)

Acta Phys. Sin., 1991, 40(8): 1313-1319.
DOI: 10.7498/aps.40.1313
CSTR: 32037.14.aps.40.1313
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  • 摘要

    本文在文献1的基础上,研究LiNbO3,中对称单元“Nb—Li—Nb”的静态Jahn-Teller畸变,计算材料在相变点(Tc=75℃)处的热膨胀系数跳跃值,结果定量与实验符合。

     

    Abstract

    Based on the assumption of our previous paper (I), we have calculated the thermal expansion coefficients of LiNbO3 along c and b axes respectively. The results are consistent with the experiments.

     

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