Magnetoresistance effect of conducting single-molecule magnet
| Project/Area Number |
24750119
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Functional materials chemistry
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| Research Institution | Tohoku University |
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Principal Investigator |
KATOH Keiichi 東北大学, 理学(系)研究科(研究院), 助教 (80374742)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 単分子磁石 / 磁気抵抗効果 / 分子磁性体 / 分子性導体 / 希土類 / フタロシアニン / スピン依存伝導 / π電子 / スピントロニクス / 導電性単分子磁石 |
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| Outline of Final Research Achievements |
To elucidate the details of the magnetoresistance effects of conducting single-molecule magnets (SMM), [TbPc2]Ix (Terbium = Tb, Phthalocyanine = Pc, Iodine = I), which is robust to various physical property measurements, was studied. We produced a crystal of TbPc2, which has stable redox properties, by using an electrolytic oxidation crystallization method in the presence of iodine.
[TbPc2]Ix has uniaxial magnetic anisotropy along the c-axis in the crystal structure, and magnetic hysteresis was observed at 18 K. The semiconductor behavior reflects the observed electronic structure. In addition, it behaves as an SMM, which undergo slow relaxation of the magnetization. Spin-dependent conductivity correlated to the temperature dependence of the magnetic hysteresis. In other words, using [TbPc2]Ix, the magnetoresistance effect of conducting SMMs was observed for the first time.
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Report
(4 results)
Research Products
(58 results)
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[Journal Article] Control of the Single-Molecule Magnet Behavior of Lanthanide-Diarylethene Photochromic Assemblies by Irradiation with Light2014
Author(s)
Dawid Pinkowicz, Min Ren, Li-Min Zheng, Saki Sato, Miki Hasegawa, Masakazu Morimoto, Masahiro Irie, Brian K. Breedlove, Goulven Cosquer, Keiichi Katoh, Masahiro Yamashita
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Journal Title
Chemistry－A European Journal
Volume: 39
Issue: 39
Pages: 12502-12513
DOI
Related Report
Peer Reviewed / Open Access
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