Ferromagnetic Dy-Ni and antiferromagnetic Dy-Cu couplings in single-molecule magnets [Dy2Ni] and [Dy2Cu |
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| Authors: | Okazawa Atsushi Nogami Takashi Nojiri Hiroyuki Ishida Takayuki |
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| Institution: | Department of Applied Physics and Chemistry, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan. |
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| Abstract: | The exchange couplings in {Dy(hfac)3}2Cu(dpk)2] and {Dy(hfac)3}2Ni(dpk)2(py)2] (Hdpk = di-2-pyridyl ketoxime) were precisely evaluated by high-frequency electron paramagnetic resonance and pulsed-field magnetization studies, giving J(Dy-Cu)/kB = -0.126 K and J(Dy-Ni)/kB = +0.031 K. |
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