2010 Fiscal Year Final Research Report
Rational Construction of Metal Complex-based Polar Magnets Having Multiple Properties
| Project/Area Number |
20350026
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic chemistry
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| Research Institution | Kyoto University |
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Principal Investigator |
OHBA Masaaki Kyoto University, 大学院・理学研究院, 教授 (00284480)
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| Co-Investigator(Kenkyū-buntansha) |
SHIGA Takuya 筑波大学, 数理物質科学研究科, 助教 (00375411)
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| Co-Investigator(Renkei-kenkyūsha) |
MITO Masaki 九州工業大学, 工学研究科, 准教授 (60315108)
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| Project Period (FY) |
2008 – 2010
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| Keywords | キラリティ / フェリ磁性 / 強磁性 / 誘電性 |
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| Research Abstract |
Novel 1-D chiral cyanide-bridged ferromagnets, PPh_4[Ni(L)_2][Fe(CN)_6] have been prepared using chiral co-ligands (L). Two-step magnetic ordering was observed at 3.0 and 2.5 K, which was supported by linear and nonlinear ac magnetic responses, magnetic specific heat and μSR. These multiple results corroborated that the magnetic structure changed among the two-dimensional Ising-type paramagnetic phase above 3.0 K, the two-dimensional Ising ordered phase between 3.0 K and 2.5 K, and the three-dimensional magnetic ordered phase involving some chiral spin structures below 2.5 K. The trial of chirality transfer from the structure to the spin structure was succeeded in the one-dimensional molecular-based magnets incorporating chiral co-ligand and single-ion anisotropy.
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