@article{oai:kumadai.repo.nii.ac.jp:00022037,
 author = {加賀山, 朋子 and 黒田, 規敬 and 杉本, 豊成 and Hasanudin and Kagayama, Tomoko and Kuroda, Noritaka and 杉本, 豊成 and Sugimoto, Toyonari},
 issue = {1},
 journal = {Physica status solidi. B},
 month = {Jan},
 note = {application/pdf, 論文(Article), The pressure dependence of the optical absorption spectra of (NMe4)2TCNQ3 and Cs2TCNQ3 has been measured at room temperature in the spectral range from mid-infrared to the visible. At ambient pressure the optical energy gap is observed at around 0.5 and 0.3 eV in (NMe4)2TCNQ3 and Cs2TCNQ3, respectively. The energy gap in (NMe4)2TCNQ3 decreases by 0.05 eV with increasing pressure up to 2 GPa, followed by an abrupt decrease towards 0.2 eV between 2 and 3 GPa. At higher pressures up to 5.5 GPa the gap remains almost unchanged. The intra- and inter-molecular optical absorption bands in the near-infrared to visible region are intensified by pressure and broaden out at 2.5 GPa. The absorption spectrum in Cs2TCNQ3 exhibits a similar behavior under pressure. These results suggest that an electronic phase transition is induced by pressure at around 2.5 GPa in both substances. This transition resembles the charge order-disorder (Verwey) transition in Fe3O4., http://www.interscience.wiley.com/},
 pages = {337--342},
 title = {High pressure optical absorption in organic semiconductors (NMe4)2TCNQ3 and Cs2TCNQ3},
 volume = {223},
 year = {2001},
 yomi = {スギモト, トヨナリ}
}