フタロシアニン導体における圧力誘起電荷移動 [in Japanese] Pressure-Induced Charge Transfer in Phthalocyanine Conductors [in Japanese]
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Phthalocyanine conductor NiPc (As<SUB>6</SUB>) <SUB>0. 5</SUB> is a double-chain system: a metal chain and macrocyle chain coexist within the same molecular column. This characteristic structure produces a two-band system: a wide π-band and narrow d-band, which is located near the Fermi level of the wide π-band. In this system, high pressure tunes the energy level of this 3d<SUB>z</SUB><SUP>2</SUP>-band, and induces a metal-ligand charge transfer from the 3d<SUB>z</SUB><SUP>2</SUP>-band to π-band, which was verified by the absorption spectra of infrared, near-infrared, and visible region. The vacant state of the 3/4-filled π-band is continuously filled up to 7 GPa. According to the increase of the pressure non-metallic phase which exists below 40 K at ambient pressure evolves to almost room temperature around 1 GPa.
- The Review of High Pressure Science and Technology
The Review of High Pressure Science and Technology 6(3), 167-175, 1997-08-20
The Japan Society of High Pressure Science and Technology