Low-temperature specific heat of the quasi-two-dimensional charge-density wave compound KMo6O17
文献类型：期刊论文
| 作者 | J. F. Wang ; R. Xiong ; D. Yin ; C. Z. Li ; Z. Tang ; Q. Q. Wang ; J. Shi ; Y. Wang ; H. H. Wen |
| 刊名 | Physical Review B
 |
| 出版日期 | 2006 |
| 卷号 | 73期号:19 |
| 关键词 | blue bronze k0.30moo3 low-energy excitations k0.9mo6o17 k0.3moo3 potassium conductor thermodynamics amo(6)o(17) transition particle |
| ISSN号 | 1098-0121 |
| 中文摘要 | Low temperature specific heat (C-p) of quasi-two-dimensional charge-density wave (CDW) compound KMo6O17 has been studied by a relaxation method from 2 to 48 K under zero and 12 T magnetic fields. The results show that no specific heat anomaly is found at 16 K under both zero and 12 T magnetic fields, although an anomaly is clearly observed in the resistivity and magnetoresistance measurements. From the data between 2 and 4 K, the density of states at Fermi level is estimated as 0.2 eV(-1) per molecule and the Debye temperature is extracted to be 418 K. A bump appearing in C-p/T-3 is found between 4 and 48 K centered around 12.5-15 K, indicating that the phason excitations contribute to the total specific heat similarly as in quasi-one-dimensional CDW conductors. Using a modified Debye model, a pinning frequency of 0.73 THz for KMo6O17 is estimated from the phason contribution. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34507]  |
| 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. F. Wang,R. Xiong,D. Yin,et al. Low-temperature specific heat of the quasi-two-dimensional charge-density wave compound KMo6O17[J]. Physical Review B,2006,73(19). |
| APA | J. F. Wang.,R. Xiong.,D. Yin.,C. Z. Li.,Z. Tang.,...&H. H. Wen.(2006).Low-temperature specific heat of the quasi-two-dimensional charge-density wave compound KMo6O17.Physical Review B,73(19). |
| MLA | J. F. Wang,et al."Low-temperature specific heat of the quasi-two-dimensional charge-density wave compound KMo6O17".Physical Review B 73.19(2006). |
入库方式： OAI收割
来源：金属研究所
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