The novel dielectric relaxation behavior around the Curie point of (Ba0.7Sr0.3)(0.96)Y0.04TiO3 ceramics with giant effective permittivity
文献类型：期刊论文
| 作者 | Yan, Shiguang1; Mao, Chaoliang1; Wang, Genshui1; Yao, Chunhua1; Cao, Fei1; Dong, Xianlin1; Meng, Xiangjian2 |
| 刊名 | MATERIALS RESEARCH EXPRESS
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 3期号:10 |
| 关键词 | giant dielectric constant interfacial polarization complex impedance spectrum |
| 英文摘要 | The temperature (80 K similar to 423 K) and frequency (40 Hz similar to 5 MHz) dependence of the permittivity were studied in (Ba0.7Sr0.3)(0.96)Y0.04TiO3 ceramics. A giant effective permittivity over 10(5) with a certain frequency and temperature stability and Debye-type dielectric relaxation behavior was observed. The complex impedance spectrum analysis reveals that the giant permittivity is due to the heterogeneous structure with a semiconducting bulk and high resistance electrode-ceramic interface. Deviating from low temperature (below 200 K) thermal activated behavior, the odd change of the characteristic relaxation frequency around the Curie point is observed and proven to be induced by the competition between the positive temperature coefficient of the resistance effect of the bulk ceramic and the dielectric anomaly of the surface layer capacitance, both of which originate from the ferroelectric-paraelectric phase transition. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Multidisciplinary |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | RANGE-HOPPING CONDUCTION ; COLOSSAL PERMITTIVITY ; CACU3TI4O12 CERAMICS ; BARIUM-TITANATE ; SPECTROSCOPY ; BATIO3 ; OXIDE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000386563100002 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/22000]  |
| 专题 | 上海硅酸盐研究所_无机功能材料与器件重点实验室_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Devices, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Tech Phys, Natl Lab Infrared Phys, 500 Yutian Rd, Shanghai 200083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Shiguang,Mao, Chaoliang,Wang, Genshui,et al. The novel dielectric relaxation behavior around the Curie point of (Ba0.7Sr0.3)(0.96)Y0.04TiO3 ceramics with giant effective permittivity[J]. MATERIALS RESEARCH EXPRESS,2016,3(10). |
| APA | Yan, Shiguang.,Mao, Chaoliang.,Wang, Genshui.,Yao, Chunhua.,Cao, Fei.,...&Meng, Xiangjian.(2016).The novel dielectric relaxation behavior around the Curie point of (Ba0.7Sr0.3)(0.96)Y0.04TiO3 ceramics with giant effective permittivity.MATERIALS RESEARCH EXPRESS,3(10). |
| MLA | Yan, Shiguang,et al."The novel dielectric relaxation behavior around the Curie point of (Ba0.7Sr0.3)(0.96)Y0.04TiO3 ceramics with giant effective permittivity".MATERIALS RESEARCH EXPRESS 3.10(2016). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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