A Raman scattering study of the isotope effect in (NH4)(2)PbCl6
文献类型：期刊论文
| 作者 | J. R. Shi ; Y. Kume ; B. Arnscheidt ; Y. C. Xu ; X. Wu ; J. Pelzl |
| 刊名 | Journal of Physics-Condensed Matter
 |
| 出版日期 | 1996 |
| 卷号 | 8期号:28页码:5247-5252 |
| 关键词 | ammonium hexachlorotellurate phase-transitions thermodynamic properties deuterated (nh4)2tecl6 heat-capacity (nh4)2pbcl6 temperatures ion nmr |
| ISSN号 | 0953-8984 |
| 中文摘要 | Raman spectra of (NH4)(2)PbCl6 and (ND4)(2)PbCl6 crystals have been recorded in the temperature range 5 K-300 K. (NH4)(2)PbCl6 undergoes only one structural phase transition at T-c1 = 78 K from a cubic (O-h(5)) to a trigonal structure (C-3i(2)), whereas (ND4)(2)PbCl6 undergoes structural phase transitions from a cubic (O-h(5)) to a trigonal structure (C-3i(2)) at T-c1 = 79 K, and to a monoclinic or orthorhombic structure at T-c2 = 34 K. Continuous changes of the Raman-active modes at T-c1 in both compounds show that the structural transition from cubic to trigonal is one of second order and results from distortions with symmetry related to the T-1g irreducible representation at the Gamma point. Discontinuous behaviours of the Raman modes at T-c2 in (ND4)(2)PbCl6 show that the second structural transition is one of first order. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/38392]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | J. R. Shi,Y. Kume,B. Arnscheidt,et al. A Raman scattering study of the isotope effect in (NH4)(2)PbCl6[J]. Journal of Physics-Condensed Matter,1996,8(28):5247-5252. |
| APA | J. R. Shi,Y. Kume,B. Arnscheidt,Y. C. Xu,X. Wu,&J. Pelzl.(1996).A Raman scattering study of the isotope effect in (NH4)(2)PbCl6.Journal of Physics-Condensed Matter,8(28),5247-5252. |
| MLA | J. R. Shi,et al."A Raman scattering study of the isotope effect in (NH4)(2)PbCl6".Journal of Physics-Condensed Matter 8.28(1996):5247-5252. |
入库方式： OAI收割
来源：金属研究所
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