Youhei Iida

Pressure-induced nearly perfect rectangular lattice and superconductivity in the organic molecular crystal (DMET-TTF) 2 AuBr 2

Taiga Kato, Hanming Ma, Kazuyoshi Yoshimi, Takahiro Misawa et autres

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Pressure-induced nearly perfect rectangular lattice and superconductivity in an organic molecular crystal (DMET-TTF)$_2$AuBr$_2$

Taiga Kato, Hanming Ma, Kazuyoshi Yoshimi, Takahiro Misawa et autres

External pressure and associated changes in lattice structures are key to realizing exotic quantum phases such as high-$T_{\rm c}$ superconductivity. While applying external pressure is a standard method to induce novel lattice structures, its impact on organic molecular crystals has been less …

Magnetic state in the quasi-two-dimensional organic conductor λ−(BEST)2FeCl4 and the path of π−d interaction

Rikumaru Saito, Youhei Iida, Takuya Kobayashi, Hiromi Taniguchi et autres

Studies of the quasi-two-dimensional organic conductors $\ensuremath{\lambda}\text{\ensuremath{-}}{(D)}_{2}M{\mathrm{Cl}}_{4}$ [$D=\text{donor molecules}$, $M=\mathrm{Ga},\mathrm{Fe}$] have shown that $\ensuremath{\lambda}\text{\ensuremath{-}}{(\mathrm{BETS})}_{2}{\mathrm{GaCl}}_{4}$ [BETS = bis(ethylenedithio)tetraselenafulvalene] undergoes an unconventional superconducting transition and $\ensuremath{\lambda}\text{\ensuremath{-}}{(\mathrm{BETS})}_{2}{\mathrm{FeCl}}_{4}$ undergoes a field-induced superconducting transition. In $\ensuremath{\lambda}$-type salts, the interactions between donor molecules and ${\mathrm{FeCl}}_{4}^{\ensuremath{-}}$ ($\ensuremath{\pi}\text{\ensuremath{-}}d$ interactions) are …

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Magnetic state in the quasi-two-dimensional organic conductor λ-(BEST)2FeCl4 and the path of π-d interaction

Rikumaru Saito, Youhei Iida, Takuya Kobayashi, Hiromi Taniguchi et autres

Studies of the quasi-two-dimensional organic conductors λ-(D)2MCl4 [D = donor molecules, M = Ga, Fe] have shown that λ-(BETS)2GaCl4 [BETS = bis(ethylenedithio)tetraselenafulvalene] undergoes an unconventional superconducting transition and λ-(BETS)2FeCl4 undergoes a field-induced superconducting transition. In λ-type salts, the interactions between donor molecules …

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Spin density wave in the strongly dimerized quasi-one-dimensional organic conductor (DMET-TTF) 2AuBr2

Youhei Iida, Masashi Sawada, Yoshiaki Sasaki, Tomoaki Tsuchiya et autres

At ambient pressure, studies of resistivity, magnetic susceptibility, and carbon-13 nuclear magnetic resonance (NMR) were conducted on the quasi-one-dimensional organic conductor ${(\text{DMET-}\mathrm{TTF})}_{2}{\mathrm{AuBr}}_{2}$. Resistivity measurements showed a broad minimum at approximately 160 K, and the insulator behavior below this temperature and magnetic susceptibility …

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Spin density wave in the strongly dimerized quasi-one-dimensional organic conductor (DMET-TTF)(2)AuBr2

Youhei Iida, Masashi Sawada, Yoshiaki Sasaki, Tomoaki Tsuchiya et autres

At ambient pressure, studies of resistivity, magnetic susceptibility, and carbon-13 nuclear magnetic resonance (NMR) were conducted on the quasi-one-dimensional organic conductor (DMET-TTF)(2)AuBr2. Resistivity measurements showed a broad minimum at approximately 160 K, and the insulator behavior below this temperature and magnetic susceptibility …

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Vapochromic behaviour of a nickel( ii )-quinonoid complex with dimensional changes between 1D and higher

Ryota Yano, Masaki Yoshida, Takahiro Tsunenari, Ayana Tomita et autres

The nickel(ii)-chloranilato complex {Ni(ca)(VM)2}n (H2ca = chloranilic acid, VM = coordinated vapour molecules, such as water) shows reversible vapochromism upon exposure to various vapours and subsequent drying by heating. In contrast to the Ni(ii)-quinonoid complex, [Ni(HLMe)2] (H2LMe = 4-methylamino-6-methyliminio-3-oxocyclohexa-1,4-dien-1-olate), which was reported …

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Vapochromic behaviour of a nickel(II)-quinonoid complex with dimensional changes between 1D and higher

Ryota Yano, Masaki Yoshida, Takahiro Tsunenari, Ayana Tomita et autres

The nickel(ii)-chloranilato complex {Ni(ca)(VM)(2)}(n) (H(2)ca = chloranilic acid, VM = coordinated vapour molecules, such as water) shows reversible vapochromism upon exposure to various vapours and subsequent drying by heating. In contrast to the Ni(ii)-quinonoid complex, [Ni(HLMe)(2)] (H2LMe = 4-methylamino-6-methyliminio-3-oxocyclohexa-1,4-dien-1-olate), which was reported …

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Proposal of a New Auditory Nerve Stimulation Method for Cochlear Prosthesis

Shigeki Miyoshi, Youhei Iida, Shunji Shimizu, Junichi Matsushima et autres

The stimulation electrodes of cochlear implants are covered by a lymph liquid with high electrical conductivity, which causes the transmitted information to be reduced by channel interaction. Even if this problem were solved, the stimulation regions may be discrete; therefore, there may …

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