Studies for Direction Dependences of Magnetizations and Magnetic Structure of Chiral Molecule-based Metamagnet, [Mn(hfac)_2]・BNO
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We measured angular dependences of single-crystal magnetization for the chiral structural molecule-based metamagnet [Mn(hfac)<SUB>2</SUB>]·BNO<SUP>*</SUP> (<B>1</B>). This crystal shows remarkable crystal direction dependences of spin flip transition in all crystallographic <I>a</I>, <I>b</I>, and <I>c</I> axes and the transitions are observed at different critical magnetic fields (<I>H</I> || <I>a</I>: 640 Oe, <I>H</I> || <I>b</I>: 1000 Oe, and <I>H</I> || <I>c</I>: 1250 Oe at 2 K). These results mean that <B>1</B> has independent antiferromagnetic multi-sublattices. We calculated its possible magnetic structure from magnetic data and constructed magnetic structural model.
- Chemistry Letters
Chemistry Letters 36(4), 534-535, 2007-04-05
The Chemical Society of Japan