Magnetic dynamics in underdoped YBa2Cu3O7-x: Direct observation of a superconducting gap
文献类型：期刊论文
| 作者 | Dai, P ; Yethiraj, M ; Mook, HA ; Lindemer, TB ; Dogan, F |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 1996 |
| 卷号 | 77期号:27页码:5425 |
| 关键词 | HIGH-TEMPERATURE SUPERCONDUCTORS NEUTRON-SCATTERING SPIN DYNAMICS SUSCEPTIBILITY SYSTEM ANISOTROPY DEPENDENCE OXYGEN STATES PHONON |
| ISSN号 | 0031-9007 |
| 通讯作者 | Dai, P (reprint author), OAK RIDGE NATL LAB,OAK RIDGE,TN 37831, USA. |
| 中文摘要 | Polarized and unpolarized triple-axis neutron measurements were performed on an underdoped crystal of YBa2Cu3O7-x (x = 0.4 +/- 0.02, T-c = 62.7 K). Our results indicate, contrary to earlier evidence, that the spin excitations in the superconducting state are essentially the same as those in the fully doped material except that the unusual 41 meV resonance is observed at 34.8 meV. The normal state spin excitations are characterized by a weakly energy-dependent continuum whose temperature dependence shows the clear signature of a superconducting gap at T-c. The enhancement at the resonance is accompanied by a suppression of magnetic fluctuations at both higher and lower energies. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2014-02-20 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57911]  |
| 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 | Dai, P,Yethiraj, M,Mook, HA,et al. Magnetic dynamics in underdoped YBa2Cu3O7-x: Direct observation of a superconducting gap[J]. PHYSICAL REVIEW LETTERS,1996,77(27):5425. |
| APA | Dai, P,Yethiraj, M,Mook, HA,Lindemer, TB,&Dogan, F.(1996).Magnetic dynamics in underdoped YBa2Cu3O7-x: Direct observation of a superconducting gap.PHYSICAL REVIEW LETTERS,77(27),5425. |
| MLA | Dai, P,et al."Magnetic dynamics in underdoped YBa2Cu3O7-x: Direct observation of a superconducting gap".PHYSICAL REVIEW LETTERS 77.27(1996):5425. |
入库方式： OAI收割
来源：物理研究所
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