Far-infrared study of the insulator-metal transition in kappa-(BEDT-TTF)(2)Cu(NCS)(2): evidence for polaron absorption
文献类型：期刊论文
| 作者 | Wang, NL ; Clayman, BP ; Mori, H ; Tanaka, S |
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 2000 |
| 卷号 | 12期号:12页码:2867 |
| 关键词 | BEDT-TTF
OPTICAL-PROPERTIES
PHASE-DIAGRAM
BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE
(BEDT-TTF)2 |
| ISSN号 | 0953-8984 |
| 通讯作者 | Wang, NL: Chinese Acad Sci, Inst Phys, POB 2711, Beijing 100080, Peoples R China. |
| 中文摘要 | We present the infrared properties of kappa-(BEDT-TTF)(2)Cu(NCS)(2) for E parallel to b and E parallel to c focusing on the evolution of charge conduction from high-T insulating to low-T metallic behaviour. Anomalous absorption manifested in a broad peak in the optical conductivity at high temperature is interpreted in terms of photon-assisted hopping of small polarons. A sharp Drude peak that develops at low temperature, together with large mid-infrared spectral weight in the conductivity, are attributed to coherent and incoherent bands of large polarons. The insulator-metal transition can be understood as a crossover from localized small-polaron to coherent large-polaron behaviour. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/38004]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang, NL,Clayman, BP,Mori, H,et al. Far-infrared study of the insulator-metal transition in kappa-(BEDT-TTF)(2)Cu(NCS)(2): evidence for polaron absorption[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2000,12(12):2867. |
| APA | Wang, NL,Clayman, BP,Mori, H,&Tanaka, S.(2000).Far-infrared study of the insulator-metal transition in kappa-(BEDT-TTF)(2)Cu(NCS)(2): evidence for polaron absorption.JOURNAL OF PHYSICS-CONDENSED MATTER,12(12),2867. |
| MLA | Wang, NL,et al."Far-infrared study of the insulator-metal transition in kappa-(BEDT-TTF)(2)Cu(NCS)(2): evidence for polaron absorption".JOURNAL OF PHYSICS-CONDENSED MATTER 12.12(2000):2867. |
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来源：物理研究所
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