Author/Authors :
Sugimoto، نويسنده , , Toyonari and Ueda، نويسنده , , Kazumasa and Tsujii، نويسنده , , Masaya and Fujita، نويسنده , , Hideo and Hosoito، نويسنده , , Nobuyoshi and Kanehisa، نويسنده , , Nobuko and Shibamoto، نويسنده , , Yoshiyuki and Kai، نويسنده , , Yasushi، نويسنده ,
Abstract :
Recrystallization of N(CH3)4+ · TCNQF4−. in the presence of TCNQF4 from acetonitrile/ether gave a crystal of {N(CH3)4+ · TCNQF4−.}·12(TCNQF4), which very interestingly exhibited ferromagnetism at temperature. This organic ferromagnet has characteristics of very small saturation moment (1.03 × 10−3 μB/molecule) and coercive field (≈ 25 Oe). The origin of this ferromagnetism could be attributed to a unique crystal structure of the radical anion salt: the TCNQF4/TCNQF4−. and N(CH3)4+ ion layers are alternately stacked and in the TCNQF4/TCNQF4−. layer each pair of two TCNQF4−. molecules is arranged in a completely perpendicular manner to each of one TCNQF4 molecule.
