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Molecular motion and high-temperature paramagnetic phase in kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Cl
| Title: | Molecular motion and high-temperature paramagnetic phase in kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Cl |
| Authors: | Matsumoto, Miko Browse this author | | Saito, Yohei Browse this author | | Kawamoto, Atsushi Browse this author →KAKEN DB |
| Issue Date: | 15-Sep-2014 |
| Publisher: | American Physical Society |
| Journal Title: | Physical Review B |
| Volume: | 90 |
| Issue: | 11 |
| Start Page: | 115126 |
| Publisher DOI: | 10.1103/PhysRevB.90.115126 |
| Abstract: | The organic conductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Cl has been studied for the examination of the conducting mechanism of the semiconducting behavior at high temperatures by C-13-NMR spectroscopy. We found that the temperature dependence of the linewidths and the spin-spin relaxation rate T-2(-1) showed a peak structure characterized by the hyperfine coupling constant in this region, suggesting a connection between ethylene motion and conducting electrons similar to that observed in kappa-(BEDT-TTF)(2)Cu(NCS)(2). Although kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Cl salt was thought to be an insulator at high temperature, our findings suggest that all kappa-type salts at high temperatures could be in the same phase where the scattering caused by ethylene motion is added to bad metal. |
| Rights: | ©2014 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/57340 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 河本 充司
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