钛酸钡有序──无序型结构相变机制的新证据 |
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引用本文: | 曾令祉,蒋毅坚,王荣平. 钛酸钡有序──无序型结构相变机制的新证据[J]. 光散射学报, 1995, 0(Z1) |
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作者姓名: | 曾令祉 蒋毅坚 王荣平 |
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作者单位: | 北京工业大学应用物理系 |
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基金项目: | 国家自然科学基金,北京市科技新星计划资助的课题 |
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摘 要: | 钛酸钡有序──无序型结构相变机制的新证据曾令祉,蒋毅坚,王荣平(北京工业大学应用物理系北京100022)NewExperimentalEvidencesofOrder-DisofderTransitionsinBariumTitanate¥L.Z-Z...
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New Experimental Evidences of Order-Disofder Transitions in Barium Titanate |
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Abstract: | Abstract Some new experimental results,such as new Raman bands, oblique phonons and polaritons dispersion,confirm that the two asymmetry bands peaked at 275 and 514 cm~(-1) in the X(ZZ)Y spectrum to be of first order, which support the order-disorder ferroelectrio phase transitions in BaTiO_3. |
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