2016年9月
Tunneling Motion and Antiferroelectric Ordering of Lithium Cations Trapped inside Carbon Cages
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
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- 巻
- 85
- 号
- 9
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.7566/JPSJ.85.094605
- 出版者・発行元
- PHYSICAL SOC JAPAN
Dielectric and X-ray diffraction measurements of [Li@C-60](PF6) single crystals reveal the motion of the Li+ cations inside the C-60 cages at low temperature. An increase in the dielectric permittivity below 100K is consistent with a combined tunneling and hopping motion of the Li+ cation between two positions inside the C-60 cage. A phase transition accompanied by a decrease in the dielectric permittivity at T-C = 24K is explained by an antiferroelectric ordering of the Li+ cations. The Li+ ordering is caused by interactions among electric dipole moments formed between the Li+ cations inside and the PF6- anions outside the C-60 cages. The electric dipole moments that are switched by the Li+ tunneling and interact with each other are potential qubits in a quantum computer using electric dipole moments.
- リンク情報
- ID情報
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- DOI : 10.7566/JPSJ.85.094605
- ISSN : 0031-9015
- Web of Science ID : WOS:000382254400037