G. Saito

Mott Transition from a Spin Liquid to a Fermi Liquid in the Spin-Frustrated Organic Conductor kappa-(ET)~2Cu~2(CN)~3

The pressure-temperature phase diagram of the organic Mott insulator kappa-(ET)2Cu2(CN)3, a model system of the spin liquid on triangular lattice, has been investigated by 1H NMR and resistivity measurements. The spin-liquid phase is persistent before the Mott transition to the metal or superconducting phase under pressure. At the Mott transition, the spin fluctuations are rapidly suppressed and the Fermi-liquid features are observed in the temperature dependence of the spin-lattice relaxation rate and resistivity. The characteristic curvature of the Mott boundary in the phase diagram highlights a crucial effect of the spin frustration on the Mott transition.

H-NMR investigation of the SDW wave-number in (TMTTF)/sub 2/Br

Abstract We performed the measurement of 1H-NMR lineshape in the spin density wave (SDW) state of (TMTTF)2Br, in which a “commensurate” SDW state had been suggested in the recent 13C-NMR measurement. We found the most possible SDW wave-number to be ( 1 2 , 1 4 , 0 ) and the amplitude be 0.14μB/molecule by a precise analysis of angular dependence of 1H-NMR lineshape. The wave-number is commensurate but very close to that of the incommensurate SDW in (TMTSF)2PF6. The SDW characteristics in (TMTTF)2Br are discussed.

Emergence of inhomogeneous moments from spin liquid in the triangular-lattice Mott insulator κ − ( ET ) 2 Cu 2 ( CN ) 3

The static and dynamic local spin susceptibility of the organic Mott insulator

Reentrant superconductivity in κ-(BEDT-TTF)2Cu[N(CN)2]Cl and its pressure phase diagram

\ensuremath{\kappa}\text{\ensuremath{-}}(\mathrm{ET}{)}_{2}{\mathrm{Cu}}_{2}(\mathrm{CN}{)}_{3}

Quantum oscillations of magnetoresistance in a new organic superconductor (BEDT-TTF)2(NH4)Hg(SCN)4

, a model material of the spin-1/2 triangular lattice, is studied by

Magnetic-Field-Induced Transition to Resistive Phase in Superconducting κ-(BEDT-TTF)2Cu[N(CN)2]Cl

^{13}\mathrm{C}

Control of film morphology and its effects on subthreshold characteristics in dibenzotetrathiafulvalene organic thin-film transistors

NMR spectroscopy from room temperature down to

Peculiarity Of Ethylenedioxy Group In Formation Of Conductive Charge-Transfer Complexes Of Bis(Ethylenedioxy) -Dibenzotetrathiafulvalene (BEDC-DBTTF)

20\phantom{\rule{0.3em}{0ex}}\mathrm{mK}

Multi electron and proton-transfer system based on 2,2'-biimidazole derivatives

. We observe an anomalous field-dependent spectral broadening with the continuous and bipolar shift distribution, appearing without the critical spin fluctuations. It is attributable to spatially nonuniform magnetizations induced in the spin liquid under magnetic fields. The amplitude of the magnetization levels off below

New transparent, colorless, metallically conductive polymer films and their electrochemical transformations

1\phantom{\rule{0.3em}{0ex}}\mathrm{K}