Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10619300 | Synthetic Metals | 2005 | 6 Pages |
Abstract
Pressure dependence of infrared absorption has been measured in Cs2TCNQ3 single crystals grown under magnetic field of 5Â T (5Â T crystals). The behavior of the CCN as well as CH stretching modes suggest that there occurs a phase transition which resembles to the one related to the insulator to metal transition in the crystals grown without magnetic field (0Â T crystals). This transition, however, takes place at 4.1Â GPa, slightly higher than the case of 0Â T crystals. The charge transfer degree of the neutral and radical molecules are found to be ÏÂ =Â 0.30-0.37 and 0.81-0.85, respectively, which are significantly different from that of 0Â T crystals. These differences are suggested to arise from the changes in the relative positions of the TCNQ molecules, as indicated from the behavior of the EMV mode.
Related Topics
Physical Sciences and Engineering
Materials Science
Biomaterials
Authors
Hasanudin Hasanudin, N. Kuroda, T. Sugimoto, I. Mogi, K. Watanabe,