Lattice vibrational property in the transition-metal diboride ZrB2
文献类型：期刊论文
| 作者 | Chu WS(储旺盛) ; Wu ZY(吴自玉); Chu, WS; Wu, ZY; Bianconi, A; Saini, NL; Marcelli, A; Liu, WH
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| 刊名 | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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| 出版日期 | 2008 |
| 卷号 | 70期号:2页码:466-470 |
| 关键词 | diboride EXAFS Einstein mode lattice vibration superconductivity |
| 通讯作者 | [Chu, W. S. ; Wu, Z. Y.] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Chu, W. S. ; Liu, W. H.] Univ Sci & Technol China, Hefei 230026, Peoples R China ; [Bianconi, A. ; Saini, N. L.] Univ Roma La Sapienza, I-00185 Rome, Italy ; [Bianconi, A. ; Saini, N. L.] Unita INFM, I-00185 Rome, Italy ; [Marcelli, A.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy |
| 英文摘要 | Lattice vibrational property has been determined in ZrB2 system using the temperature-dependent extended X-ray-absorption fine-structure (EXAFS) technique from room temperature to 28 K. The smooth behavior of Debye-Waller factor curve with temperature is slightly abnormal for the first pair Zr-B. In order to reproduce this curve, an improved Einstein mode with two Einstein frequencies has been used. The quantitative analysis of temperature-dependent Debye-Waller factor of Zr-B pair shows one Einstein frequency is very high and the other is small. These frequencies correspond to the vibration of boron layer atoms and transition-metal layer atoms, respectively. Based on the Einstein mode with one frequency, the vibrational frequency for Zr-Zr pair has been also obtained. Zirconium diboride has two types of Zr-Zr interaction. One is in-plane and the other is out-of-plane along the high symmetry axis. Our analysis shows there is a little difference between in-plane Zr-Zr vibration and out-of-plane one. And the smaller Einstein vibrational frequency for the Zr-B shell is just between the two ones of the Zr-Zr shells. Our results show that the lattice vibrational behavior in ZrB2 presents obvious particularity and anisotropy. (C) 2008 Elsevier B.V. All rights reserved. |
| 学科主题 | Spectroscopy |
| 类目[WOS] | Spectroscopy |
| 研究领域[WOS] | Spectroscopy |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000257519600038 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/237599]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Chu WS,Wu ZY,Chu, WS,et al. Lattice vibrational property in the transition-metal diboride ZrB2[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2008,70(2):466-470. |
| APA | 储旺盛.,吴自玉.,Chu, WS.,Wu, ZY.,Bianconi, A.,...&Liu, WH.(2008).Lattice vibrational property in the transition-metal diboride ZrB2.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,70(2),466-470. |
| MLA | 储旺盛,et al."Lattice vibrational property in the transition-metal diboride ZrB2".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 70.2(2008):466-470. |
入库方式： OAI收割
来源：高能物理研究所
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