Development of Novel Physical Properties Based on an Organic Coexisting System of Localized Spin and Conduction Electron

自旋电子学不仅利用电荷，而且利用电子的自旋，从发展第二代电子学的角度来看，它受到了广泛的关注。在有机供体自由基具有导电性和磁性的基础上，我们制备了四烯丙烯基供体自由基的离子自由基盐，在2 K， 12 T， 15 kbar下，其电阻率降低了-99.5%。此外，采用二溴化四硫代烯基给体自由基构建了双极性器件，该器件获得的电流由电场和磁场控制。

Spin-electronics, which utilize not only a charge but also a spin of an electron, have drawn much attention from a viewpoint of developing electronics of the second generation. Based on the first ion radical salt of an organic donor radical exhibiting both conductivity and magnetism, we prepared an ion radical salt of a tetraselenafulvalene-based donor radical the resistivity of which was deceased by -99.5% at 2 K, 12 T, under 15 kbar. Moreover, a molecular device was constructed using a dibrominated tetrathiafulvalene-based donor radical, and the current obtained by this ambipolar device was controlled both by electric and magnetic fields.