弛豫体Pb(Mg1/3Nb2/3)O3中动态和静态关联体之间的相互作用
文献类型：期刊论文
| 作者 | C. Stock ; D. Viehland ; L. Van Eijck ; P. Fouquet ; M. Maccarini ; P. M. Gehring ; Guangyong Xu ; 罗豪甦 ; 赵祥永 ; J.-F. Li |
| 刊名 | Physical Review B
 |
| 出版日期 | 2010-04-30 |
| ISSN号 | 1098-0121 |
| 其他题名 | Interplay between static and dynamic polar correlations in relaxor Pb(Mg1/3Nb2/3)O3 |
| 通讯作者 | C. Stock |
| 中文摘要 | We have characterized the dynamics of the polar nanoregions in Pb Mg1/3Nb2/3 O3 through high-resolution neutron-backscattering and spin-echo measurements of the diffuse-scattering cross section. We find that the diffuse-scattering intensity consists of both static and dynamic components. The static component first appears at the Curie temperature 400 K while the dynamic component freezes completely at the temperature Tf 200 K; together, these components account for all of the observed spectral weight contributing to the diffuse-scattering cross section. The integrated intensity of the dynamic component peaks near the temperature at which the frequency-dependent dielectric constant reaches a maximum Tmax when measured at 1 GHz, i.e., on a time scale of 1 ns. Our neutron-scattering results can thus be directly related to dielectric and infrared measurements of the polar nanoregions. Finally, the global temperature dependence of the diffuse scattering can be understood in terms of just two temperature scales, which is consistent with random-field models. |
| 学科主题 | 材料科学 |
| 收录类别 | SCI收录 |
| 语种 | 英语 |
| 公开日期 | 2012-07-05 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/1195]  |
| 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 |
| 推荐引用方式 GB/T 7714 | C. Stock,D. Viehland,L. Van Eijck,等. 弛豫体Pb(Mg1/3Nb2/3)O3中动态和静态关联体之间的相互作用[J]. Physical Review B,2010. |
| APA | C. Stock.,D. Viehland.,L. Van Eijck.,P. Fouquet.,M. Maccarini.,...&J.-F. Li.(2010).弛豫体Pb(Mg1/3Nb2/3)O3中动态和静态关联体之间的相互作用.Physical Review B. |
| MLA | C. Stock,et al."弛豫体Pb(Mg1/3Nb2/3)O3中动态和静态关联体之间的相互作用".Physical Review B (2010). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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