@article{oai:kumadai.repo.nii.ac.jp:00021735,
 author = {黒田, 規敬 and 西田, 真達 and 山下, 正廣 and Kuroda, Noritaka and Nishida, Masato and 山下, 正弘 and Yamashita, Masahiro},
 issue = {24},
 journal = {Physical Review B},
 month = {Dec},
 note = {application/pdf, 論文(Article), Long-lived midgap states are found to be induced efficiently in a substance of the mixed-valence MX chain complex [Pt(en)2][Pt(en)2Cl2](BF4)4, where en=ethylenediamine, by irradiation with the 488-nm line of an Ar laser polarized perpendicular to the Pt-Cl chain bonds. If the temperature is changed between 10 and 250 K in the dark after laser irradiation, the near-infrared absorption bands due to the photoinduced states show pronounced changes in the spectral position, line shape, and intensity. The behaviors of the mean energy and the second and third moments of the A band at low temperatures can be interpreted well in terms of the quantum fluctuation with an eigenfrequency of the order of 0.01 eV. Above about 100 K, the mean energy and the second and third moments show anomalous temperature dependencies, suggesting that the midgap states walk randomly in shallow and periodic potential wells of the chainlike bonds., PTCl錯体の配位子をこれまでのClO4からBF4に変えた[Pt(en)2][Pt(en)2Cl2](BF4)4では、250 Kでも光誘起ミッドギャップ状態がきわめて安定であることが見出された。 ClO4塩のときと同様に、ミッドギャップ光吸収バンドは顕著な温度変化を示すが、250 K以下の温度でミッドギャップ状態自体はほとんど減弱せず、温度変化は可逆的である。これらの実験結果に配位座標モデルを適用して解析することにより、ソリトンの有効質量、ソリトンに対する周期ポテンシャル、量子揺らぎの固有振動数などが定量的に求められた。, http://link.aps.org/abstract/PRB/v52/p17084},
 pages = {17084--17090},
 title = {Effects of quantum fluctuations on the photoinduced midgap absorption in an MX chain complex [Pt(en)2][Pt(en)2Cl2](BF4)4, (en)=ethylenediamine},
 volume = {52},
 year = {1995},
 yomi = {ヤマシタ, マサヒロ}
}