|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >
Photoinduced phase separation with local structural ordering in organic molecular conductors
| Title: | Photoinduced phase separation with local structural ordering in organic molecular conductors |
| Authors: | Tsuchiya, S. Browse this author | | Nakagawa, K. Browse this author | | Yamada, J. Browse this author | | Taniguchi, H. Browse this author | | Toda, Y. Browse this author →KAKEN DB |
| Issue Date: | 27-Oct-2017 |
| Publisher: | American Physical Society (APS) |
| Journal Title: | Physical Review B |
| Volume: | 96 |
| Issue: | 13 |
| Start Page: | 134311 |
| Publisher DOI: | 10.1103/PhysRevB.96.134311 |
| Abstract: | In this work, polarized pump-probe spectroscopy was carried out to investigate the effects of a structural ordering of molecules on photoinduced phase separation (PIPS) in the organic conductors k-(BEDT-TTF)(2)X [X = Cu[N(CN)(2)]Br (k-Br) and Cu(NCS)(2) (k-NCS)]. We found that the anisotropic response for the probe polarization appeared at around T-g, where the glasslike structural transition occurs. The anisotropy can be a result of a transient destruction of the local ordering of molecules, indicating a connection between the glasslike transition and PIPS. Moreover, we found that the PIPS response gradually develops with decreasing temperature in k-Br, whereas it steeply increases in k-NCS. This qualitative difference suggests that the structural ordering caused by a PIPS is more crucial in k-NCS than in k-Br. |
| Rights: | ©2017 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/67752 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 土屋 聡
|
