Spontaneous decay of a soft optical phonon in the relaxor ferroelectric PbMg1/3Nb2/3O3
文献类型：期刊论文
| 作者 | Stock, C.; Gehring, P. M.; Ewings, R. A.; Xu, G.; Li, J.; Viehland, D.; Luo, H. |
| 刊名 | PHYSICAL REVIEW MATERIALS
 |
| 出版日期 | 2018 |
| 卷号 | 2期号:2 |
| ISSN号 | 2475-9953 |
| DOI | 10.1103/PhysRevMaterials.2.024404 |
| 英文摘要 | We report the spontaneous decay of a soft, optical phonon in a solid. Using neutron spectroscopy, we find that specific phonon lifetimes in the relaxor PbMg(1/3)Nb(2/)3O(3) are anomalously short within well-defined ranges of energy and momentum. This behavior is independent of ferroelectric order and occurs when the optical phonon with a specific energy and momentum can kinematically decay into two acoustic phonons with lower phase velocity. We interpret the well-known relaxor "waterfall" effect as a form of quasiparticle decay analogous to that previously reported in quantum spin liquids and quantum fluids. |
| 学科主题 | Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000424922300002 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | This work was supported by the EPSRC, the STFC, and the Carnegie Trust for the Universities of Scotland, the Royal Society of London, and the Royal Society of Edinburgh. ; This work was supported by the EPSRC, the STFC, and the Carnegie Trust for the Universities of Scotland, the Royal Society of London, and the Royal Society of Edinburgh. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24491]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.[Stock, C.] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland 2.[Gehring, P. M. 3.Xu, G.] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA 4.[Ewings, R. A.] Rutherford Appleton Labs, ISIS Facil, Didcot OX11 0QX, Oxon, England 5.[Li, J. 6.Viehland, D.] Virginia Tech, Dept Mat Sci & Engn, Blacksburg, VA 24061 USA 7.[Luo, H.] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 201800, Peoples R China |
| 推荐引用方式 GB/T 7714 | Stock, C.,Gehring, P. M.,Ewings, R. A.,et al. Spontaneous decay of a soft optical phonon in the relaxor ferroelectric PbMg1/3Nb2/3O3[J]. PHYSICAL REVIEW MATERIALS,2018,2(2). |
| APA | Stock, C..,Gehring, P. M..,Ewings, R. A..,Xu, G..,Li, J..,...&Luo, H..(2018).Spontaneous decay of a soft optical phonon in the relaxor ferroelectric PbMg1/3Nb2/3O3.PHYSICAL REVIEW MATERIALS,2(2). |
| MLA | Stock, C.,et al."Spontaneous decay of a soft optical phonon in the relaxor ferroelectric PbMg1/3Nb2/3O3".PHYSICAL REVIEW MATERIALS 2.2(2018). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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