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分子磁性体
金属錯体などナノスケール磁性体の振る舞いは、量子トンネルなど実時間に依存する物理現象の理解の観点からも、将来の分子素子や量子計算などへの応用の観点からも興味深い課題です。
光と多自由度結合を利用した"Spin-Hamiltonian Tunable"な磁性体の探査、複雑な時間構造をもつ高速掃引パルス強磁場による非断熱遷移の研究やESRを用いた単分子磁石のダイナミックスの研究などを行っています。
Molecular Based Magnets
Molecular based magnetic complexes are good models to examine physics of time dependent phenomena such as quantum tunneling and adiabatic transition.
The manipulation of spins in nano-object is the basis of molecular magnetic device and quantum information.
Realization of ”Spin-Hamiltonian Tunable” magnets by using photo response and interplay of multi-degrees of freedom is our important target.
We utilize the ultra-fast sweeping magnetic fields with designed sequence. Also, ESR is used to study spin dynamics of molecular based magnets.
For More Insight
Single-Molecule Toroic Design through Magnetic Exchange Coupling,
Matter (2020) in press
A Comparative Experimental and Theoretical Study of the Correlation Between the Distortion of the DyO6N2 Coordination Sphere and the Anisotropy Barrier,
FRONTIERS in CHEMISTRY. 6(2018) 537
Anisotropic Change in the Magnetic Susceptibility of a Dynamic Single Crystal of a Cobalt(II) Complex,
Angew. Chem.-Int. Edit. 56(2017) 717
Giant Exchange Coupling Evidenced with a Magnetization Jump at 52 T for a Gadolinium-Nitroxide Chelate,
Inorg. Chem. 56(2017) 3310
Trigonal Bipyramid Ni3Cl3O2 Cluster Showing the High-Spin S = 3 Ground State with Uniaxial Magnetic Anisotropy,
Bull. Chem. Soc. Jpn. 89(2016) 26
A Ferromagnetically Coupled Fe42 Cyanide-bridged Nanocage,
Nat. Commun. 6(2015) 5955
Relationship between Torsion and Anisotropic Exchange Coupling in a TbIII-Radical-Based Single-Molecule Magnet,
Inorg. Chem. 54(2015) 5732
Three-way Switching in a Cyanide-bridged [CoFe] Chain,
Nat. Chem. 4(2012) 921-926
Determination of exchange energies in the sawtooth spin ring {Mo75V20} by ESR,
Phys. Rev. B 85(2012) 024413
Coherent Manipulation of Electron Spins in the {Cu3} Spin Triangle Complex Impregnated in Nanoporous Silicon,
Phys. Rev. Lett. 108(2012) 067206
Observation of a Half Step Magnetization in the Cu3-Type Triangular Spin Ring,
Phys. Rev. Lett, 96 (2006) 107202
Competing Spin Phases in Geometrically Frustrated Magnetic Molecules,
Phys. Rev. Lett, 94 (2005) 017205
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