Doping evolution of the phonon density of states and electron-lattice interaction in Nd2-xCexCuO4+delta
文献类型：期刊论文
| 作者 | Kang, HJ ; Dai, PC ; Mandrus, D ; Jin, R ; Mook, HA ; Adroja, DT ; Bennington, SM ; Lee, SH ; Lynn, JW |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2002 |
| 卷号 | 66期号:6 |
| 关键词 | HIGH-TEMPERATURE SUPERCONDUCTORS T-C ANOMALOUS-DISPERSION COPPER-OXIDE LINE-SHAPE LO PHONONS OF-STATES BI2SR2CACU2O8+DELTA LA1.85SR0.15CUO4 ENERGY |
| ISSN号 | 1098-0121 |
| 通讯作者 | Kang, HJ (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. |
| 中文摘要 | We use inelastic neutron scattering to study the evolution of the generalized phonon density of states (GDOS) of the n-type high-T-c superconductor Nd2-xCexCuO4+delta, from the half-filled Mott-insulator (x=0) to the T-c=24 K superconductor (x=0.15). Upon doping the CuO2 planes in Nd2CuO4+delta with electrons by Ce substitution, the most significant change in the GDOS is the softening of the highest phonon branches associated with the Cu-O bond stretching and out-of-plane oxygen vibration modes. However, most of the softening occurs within the first few percent of Ce doping, and is not related to the electron-doping-induced nonsuperconducting-superconducting transition at xapproximate to0.12. These results suggest that the electron-lattice coupling in the n-type high-T-c superconductors is weaker than that in the p-type materials. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2014-02-20 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57883]  |
| 专题 | 物理研究所_所内人员在其他单位发表论文题录信息_所内人员在其他单位发表论文题录信息_期刊论文 |
| 推荐引用方式 GB/T 7714 | Kang, HJ,Dai, PC,Mandrus, D,et al. Doping evolution of the phonon density of states and electron-lattice interaction in Nd2-xCexCuO4+delta[J]. PHYSICAL REVIEW B,2002,66(6). |
| APA | Kang, HJ.,Dai, PC.,Mandrus, D.,Jin, R.,Mook, HA.,...&Lynn, JW.(2002).Doping evolution of the phonon density of states and electron-lattice interaction in Nd2-xCexCuO4+delta.PHYSICAL REVIEW B,66(6). |
| MLA | Kang, HJ,et al."Doping evolution of the phonon density of states and electron-lattice interaction in Nd2-xCexCuO4+delta".PHYSICAL REVIEW B 66.6(2002). |
入库方式： OAI收割
来源：物理研究所
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