| LiTa_xNb_(l-x)O_3晶体的低温介电性和热释电性 |
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| 引用本文： | 李承森,张沛霖,钟维烈,孟宪林.LiTa_xNb_(l-x)O_3晶体的低温介电性和热释电性[J].苏州大学学报(医学版),1989(2). |
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| 作者姓名： | 李承森 张沛霖 钟维烈 孟宪林 |
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| 作者单位： | 苏州大学物理系，山东大学物理系，山东大学物理系，山东大学晶体材料研究所 |
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| 摘 要： | 研究了LiTa_xNb_(1-x)O_3单晶在300K至40K温度范围內的介电和热释电性质。介电常数和热释电系数两者都随温度降低而下降,无反常变化。在300K至200K范围内热释电伏值保持相当高的数值,这具有实用价值。
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| 关 键 词： | 钽铌酸锂 介电性质 热释电性质 |
LOW TEMPERATURE DIELECTRIC AND PYROELECTRIC PROPERTIES OF LITHIUM TANTALATE-NIOBATE CRYSTALS (LiTa_xNb_(1-x)O_3) |
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| Li Chengsen.LOW TEMPERATURE DIELECTRIC AND PYROELECTRIC PROPERTIES OF LITHIUM TANTALATE-NIOBATE CRYSTALS (LiTa_xNb_(1-x)O_3)[J].Journal of Suzhou University(Natural Science),1989(2). |
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| Authors: | Li Chengsen |
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| Abstract: | The dielectric and pyroelectric properties of single crystals LiTa_x Nb_(1-x)O_3 have been investigated in the temperature range from 300 K to 40K. Both of the dielectric constant and pyroelectric coefficient decrease with decreasing temperature, no anomalies being observed. In the range of 300 K to 200K, the pyroelectric figure of merit remains fairly high, which is of practical importance. |
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| Keywords: | lithium tantalate-niobate dielectric property pyroelectric property |
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