Ferroelectricity induced by oxygen vacancies in relaxors with perovskite structure
文献类型：期刊论文
| 作者 | Glinchuk, Maya D.; Eliseev, Eugene A.; Li, Guorong1; Zeng, Jiangtao1; Kalinin, Sergei V.; Morozovska, Anna N. |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2018 |
| 卷号 | 98期号:9 |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.98.094102 |
| 英文摘要 | The influence of oxygen vacancies on the relaxors with perovskite structure was considered in the framework of Landau-Ginzburg-Devonshire phenomenological theory. We focused on the PZN-PLZT relaxor, where an earlier experimental investigation of the influence of oxygen vacancies on the polar properties was performed and evidence of oxygen vacancy induced ferroelectricity was obtained. Since the oxygen vacancies are known to be elastic dipoles, they affect the elastic and electric fields due to Vegard and flexoelectric couplings. We have shown that a negative Curie temperature T-c* of a relaxor is renormalized by the elastic dipoles due to the electrostriction coupling and could become positive at some large enough concentration of the vacancies. A positive renormalized temperature T-C(R) = T-C* + Delta T is characteristic for the ferroelectric state. At T < T-C(R), all the polar properties could be calculated in the conventional way for ferroelectrics, but the obtained experimental data favor the coexistence of the ferroelectric phase with a relaxor state, i.e., the presence of a morphotropic region in PZN-PLZT relaxor. At T > T-C(R), the random field characteristic for relaxors is preserved, but since the mean square deviation of the polarization is nonzero, the coexistence with a dipole glass state is not excluded. For the case T > T-C(R), we calculated the local polarization and electric field induced by the flexochemical coupling with oxygen vacancies. |
| 学科主题 | Physics, Condensed Matter |
| WOS记录号 | WOS:000443671800002 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | M.D.G. generated the research idea, stated the problem, and wrote Secs. I-IV, discussion and conclusions of the manuscript. A.N.M. wrote Secs. V and VI and Appendix A of Supplementary materials with corresponding calculations and, jointly with E.A.E., generated figures. E.A.E., G.L., and S.V.K. worked on the results discussion and manuscript improvement. This work was supported by the US Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES), Materials Sciences and Engineering Division (SVK). ; M.D.G. generated the research idea, stated the problem, and wrote Secs. I-IV, discussion and conclusions of the manuscript. A.N.M. wrote Secs. V and VI and Appendix A of Supplementary materials with corresponding calculations and, jointly with E.A.E., generated figures. E.A.E., G.L., and S.V.K. worked on the results discussion and manuscript improvement. This work was supported by the US Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES), Materials Sciences and Engineering Division (SVK). |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24682]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.[Glinchuk, Maya D.; Eliseev, Eugene A.] Natl Acad Sci Ukraine, Inst Problems Mat Sci, Krjijanovskogo 3, UA-03142 Kiev, Ukraine 2.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Device, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 3.Kalinin, Sergei V.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA 4.Morozovska, Anna N.] Natl Acad Sci Ukraine, Inst Phys, 46 Pr Nauky, UA-03028 Kiev, Ukraine |
| 推荐引用方式 GB/T 7714 | Glinchuk, Maya D.,Eliseev, Eugene A.,Li, Guorong,et al. Ferroelectricity induced by oxygen vacancies in relaxors with perovskite structure[J]. PHYSICAL REVIEW B,2018,98(9). |
| APA | Glinchuk, Maya D.,Eliseev, Eugene A.,Li, Guorong,Zeng, Jiangtao,Kalinin, Sergei V.,&Morozovska, Anna N..(2018).Ferroelectricity induced by oxygen vacancies in relaxors with perovskite structure.PHYSICAL REVIEW B,98(9). |
| MLA | Glinchuk, Maya D.,et al."Ferroelectricity induced by oxygen vacancies in relaxors with perovskite structure".PHYSICAL REVIEW B 98.9(2018). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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