N. Matsunaga

Static Magnetic Susceptibility of Si : P across the Metal-Insulator Transition

The static magnetic susceptibility of phosphorus doped silicon is measured over the temperature range from 10 mK to 4.2 K at phosphorus concentrations from 5.3×10 17 to 2.8×10 19 cm -3 . The paramagnetic deviation of susceptibility is observed for samples N ≤4.5×10 18 cm -3 at low temperatures and the donor susceptibility χ D varies continuously across the metal-insulator transition. The temperature dependence of χ D is roughly described by T - a law for the lightly metallic samples as well as for the non-metallic ones. The results are discussed in connection with the theories and the experiments of ESR and specific heat.

Methanol-Triggered Vapochromism Coupled with Solid-State Spin Switching in a Nickel(II)-Quinonoid Complex

A highly methanol-selective vapochromic response has been realized in a NiII -quinonoid complex, [Ni(HLMe )2 ] (H2 LMe =4-methylamino-6-methyliminio-3-oxocyclohexa-1,4-dien-1-olate) which exhibits a reversible structural transformation including a coordination geometrical change between the square-planar and octahedral structure by the selective uptake of methanol vapor. This was accompanied by a remarkable color change between purple and orange, as well as temperature-robust spin-state switching in the solid state under ambient conditions. It is remarkable that the properties are derived by the fine structural modification of the quinonoid ligand such as methyl or ethyl analogues. Such a system has high potential for applications in memory devices as well as chemical sensors and smart responsive materials.

Role of the dimerized gap due to anion ordering in spin-density wave phase of (TMTSF)2ClO4 at high magnetic fields

Magnetoresistance measurements have been carried out along the highly conducting a axis in the FISDW phase of hydrogened and deuterated (TMTSF)

Spin-density wave and field-induced spin-density wave transitions of(TMTSF)2ClO4at high magnetic fields

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STM spectroscopy in superconducting phase of (BEDT-TTF)2Cu(NCS)2

ClO

Spin-density-wave transition of (TMTSF)2 PF6 at high magnetic fields

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Magnetization of Si:P across the Metal-Insulator Transition

for various cooling rates through the anion ordering temperature. With increasing the cooling rate, a) the high field phase boundary

Electron correlation and two dimensionality in the spin-density-wave phase of ( TMTTF ) 2 Br under pressure

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Spin Density Wave in Quasi‐One‐Dimensional Organic Conductors

, observed at 27 T in hydrogened samples for slowly cooled, is shifted towards a lower field, b) the last semimetallic SDW phase below

Anion disorder and two-dimensionality in the superconducting and SDW states of (TMTSF){sub 2}ClO{sub 4}

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