| ID | 34124 |
| フルテキストURL | |
| 著者 |
Garaj, Slaven
Institute of Physics of Complex Matter, École Polytechnique Fédérale de Lausanne
Kambe, Takashi
Graduate School of Natural Science and Technology, Okayama University
Kaken ID
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Forró, László
Institute of Physics of Complex Matter, École Polytechnique Fédérale de Lausanne
Sienkiewicz, Andrzej
Institute of Physics, Polish Academy of Sciences
Fujiwara, Motoyasu
Graduate School of Natural Science and Technology, Okayama University
Oshima, Kokichi
Graduate School of Natural Science and Technology, Okayama University
Kaken ID
researchmap
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| 抄録 | High-pressure electron spin resonance (ESR) measurements were performed on tetrakis(dimethylamino) ethylene (TDAE)-C-60 single crystals and stability of the polymeric phase was established in the P-T parameter space. At 7 kbar the system undergoes a ferromagnetic to paramagnetic phase transition due to the pressure-induced polymerization. The polymeric phase remains stable after the pressure release. The depolymerization of the pressure-induced phase was observed at a temperature of 520 K, revealing an unexpectedly high thermal stability of the polymer. Below room temperature, the polymeric phase behaves as a simple Curie-type insulator with one unpaired electron spin per chemical formula. The TDAE(+) donor-related unpaired electron spins, formerly ESR silent, become active above a temperature of 320 K, which demonstrates that the magnetic properties are profoundly defined by miniscule reorientation of TDAE molecules. |
| 備考 | Published with permission from the copyright holder.
This is the institute's copy, as published in Physical Review B, October 2003, Volume 68, Issue 14, Pages 7. Publisher URL: http://dx.doi.org/10.1103/PhysRevB.68.144430 Direct access to Thomson Web of Science record Copyright © 2003 The American Physical Society. All rights reserved. |
| 発行日 | 2003-10
|
| 出版物タイトル |
Physical Review B
|
| 巻 | 68巻
|
| 号 | 14号
|
| 資料タイプ |
学術雑誌論文
|
| 言語 |
英語
|
| 査読 |
有り
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| DOI | |
| Web of Science KeyUT | |
| Submission Path | physics_general/35
|
