| 横场-伊辛模型中BaTiO3的铁电行为 |
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| 引用本文： | 张 磊,钟维烈.横场-伊辛模型中BaTiO3的铁电行为[J].物理学报,2000,49(11):2296-2299. |
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| 作者姓名： | 张 磊 钟维烈 |
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| 作者单位： | 山东大学物理系，济南 250100 |
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| 基金项目： | 国家重点基础研究发展规划(批准号：G19980614-04-06)资助的课题. |
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| 摘 要： | 采用横场-伊辛模型描述了BaTiO3中量子效应对铁电行为可能的贡献.计算显示量子效应可以明显地减少铁电体的自发极化.模型给出的理论结果与BaTiO3的介电及极化实验结果符合较好.
关键词：
铁电性
量子效应
3')" href="#">BaTiO3
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| 关 键 词： | 铁电性 量子效应 BaTiO3 |
| 收稿时间： | 2000-04-23 |
| 修稿时间： | 2000-04-23 |
FERROELECTRIC BEHAVIORS OF BaTiO3 IN TRANSVERSE-FIELD ISING MODEL |
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| ZHANG LEI and ZHONG WEI-LIE.FERROELECTRIC BEHAVIORS OF BaTiO3 IN TRANSVERSE-FIELD ISING MODEL[J].Acta Physica Sinica,2000,49(11):2296-2299. |
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| Authors: | ZHANG LEI and ZHONG WEI-LIE |
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| Abstract: | By using the transverse-field Ising model, the possible contribution of the quantum effect to the ferroelectric behaviors for BaTiO3 was described. It is found that the quantum effect can reduce the ferroelectric polarization obviously. The theoretical results based on the new model are in good agreement with the experimental ones. |
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| Keywords: | ferroelectricity quantum effect BaTiO3 |
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