Search Results - "Tokiwa, Kazuyasu"

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    Electrical mapping of thermoelectric power factor in WO3 thin film by Shimizu, Sunao, Kishi, Tomoya, Ogane, Goki, Tokiwa, Kazuyasu, Ono, Shimpei

    Published in Scientific reports (03-05-2022)
    “…With growing environmental awareness and considerable research investment in energy saving, the concept of energy harvesting has become a central topic in the…”
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    Journal Article
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    Disposable and Flexible Paper‐Based Optoelectronic Synaptic Devices for Physical Reservoir Computing by Komatsu, Hiroaki, Hosoda, Norika, Kounoue, Toshiya, Tokiwa, Kazuyasu, Ikuno, Takashi

    Published in Advanced electronic materials (01-05-2024)
    “…Health monitoring using wearable artificial intelligence (AI) sensors with sensing and cognitive capabilities has garnered significant attention. The…”
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    Journal Article
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    Synthesis and ionic liquid gating of hexagonal WO3 thin films by Wu, Phillip M., Ishii, Satoshi, Tanabe, Kenji, Munakata, Ko, Hammond, R. H., Tokiwa, Kazuyasu, Geballe, T. H., Beasley, M. R.

    Published in Applied physics letters (26-01-2015)
    “…Via thin film deposition techniques, the meta-stable in bulk crystal hexagonal phase of tungsten oxide (hex-WO3) is stabilized as a thin film. The hex-WO3…”
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    Journal Article
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    Soft chemical synthesis and electrochemical properties of calcium ferrite-type LixMn2O4 by Mamiya, Mikito, Tokiwa, Kazuyasu, Akimoto, Junji

    Published in Journal of power sources (01-04-2016)
    “…Calcium ferrite (CaFe2O4)-type LixMn2O4 was prepared via high-pressure and soft chemical synthesis method. The framework structure of CaFe2O4-type NaMn2O4 was…”
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    Growth and Characterization of CdTe Single Crystals Prepared by the “Liquinert Processed” Vertical Bridgman Method for Radiation Detectors by Sekine, Ryotaro, Uenomachi, Mizuki, Asafusa, Hiroki, Tokiwa, Kazuyasu, Shimazoe, Kenji, Takahashi, Hiroyuki, Harada, Yoshiyuki, Fujimoto, Akira, Hirai, Takeshi, Sakuragi, Shiro

    Published in Crystal growth & design (06-11-2019)
    “…Herein, three issues affecting crystal growth on CdTe were resolved by the Liquinert-processed vertical Bridgman (LPVB) method, where Liquinert indicates that…”
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    Journal Article
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    Electrochemical properties of transition metal substituted calcium ferrite-type Lix(M0.1Mn0.9)2O4 (M = Ni, Ti) by Mamiya, Mikito, Kataoka, Kunimitsu, Akimoto, Junji, Kikuchi, Shu, Terajima, Yuka, Tokiwa, Kazuyasu

    Published in Journal of power sources (01-12-2013)
    “…Transition metal substituted CaFe2O4-type Lix(M0.1Mn0.9)2O4 (M = Ni, Ti) was synthesized by Na/Li ion exchange method from high-pressure synthesized…”
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    Journal Article Conference Proceeding
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    Synthesis and structure analysis of a new titanium oxide having an intergrowth structure between ramsdellite-type and calcium ferrite-type by Mamiya, Mikito, Kataoka, Kunimitsu, Kikuchi, Shu, Terajima, Yuka, Tokiwa, Kazuyasu, Akimoto, Junji

    “…A new crystal phase of LixTiO2 is synthesized by Sodium/Lithium ion exchange from high-pressure synthesized CaFe2O4-type NaxTiO2. The crystal structure is…”
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    Journal Article
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    Tc vs n relationship for multilayered high-Tc superconductors by IYO, Akira, TANAKA, Yasumoto, KITO, Hijiri, KODAMA, Yasuharu, SHIRAGE, Parasharam M, SHIVAGAN, Dilip D, MATSUHATA, Hirofumi, TOKIWA, Kazuyasu, WATANABE, Tsuneo

    Published in Journal of the Physical Society of Japan (01-09-2007)
    “…We have proposed a Tc vs n relationship for multilayered high-Tc superconductors from the analysis of HgBa2Can-1CunOy grain-aligned samples containing n=6 to…”
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    Synthesis of ErFeAsO-based superconductors by the hydrogen doping method by Shirage, Parasharam M, Miyazawa, Kiichi, Kihou, Kunihiro, Lee, Chul-Ho, Kito, Hijiri, Tokiwa, Kazuyasu, Tanaka, Yasumoto, Eisaki, Hiroshi, Iyo, Akira

    Published in Europhysics letters (01-12-2010)
    “…Here we demonstrate the technique to stabilize the ErFeAsO-based superconductor with the smallest lattice constants in LnFeAsO1−y (Ln = lanthanide) series…”
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    Journal Article
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    Anisotropic Electrical Conductivity in LiCoO2 Single Crystal by Takahashi, Yasuhiko, Gotoh, Yoshito, Akimoto, Junji, Mizuta, Susumu, Tokiwa, Kazuyasu, Watanabe, Tsuneo

    Published in Journal of solid state chemistry (01-02-2002)
    “…Anisotropic temperature dependence of the electrical resistivity in LiCoO2 has been first clarified using chemically and structurally characterized single…”
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    Variation of Tc in multilayered cuprates of HgBa2Can−1CunOy by Iyo, Akira, Tanaka, Yasumoto, Kito, Hijiri, Yasuharu, Kodama, Matsuhata, Hirofumi, Tokiwa, Kazuyasu, Watanabe, Tsuneo

    Published in Physica. C, Superconductivity (01-09-2007)
    “…A multilayered cuprate superconductor with a nominal composition of HgBa2Ca9Cu10Oy has been synthesized under high-pressure. A powder sample was aligned in an…”
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    Journal Article Conference Proceeding
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    The synthesis and characterization of double-layered perovskite Sr3Mo2O7 by KOUNO, Shinji, SHIRAKAWA, Naoki, NAGAI, Ichiro, UMEYAMA, Norio, TOKIWA, Kazuyasu, WATANABE, Tsuneo

    Published in Journal of the Physical Society of Japan (01-09-2007)
    “…Sr3Mo2O7 is a member of the Ruddlesden-Popper type series of Srn+1MonO3n+1 with n=2, a so-called double layered perovskite. We have successfully synthesized…”
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    Journal Article
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    Phase shifter based on an ultrathin superconducting bilayer with a through-hole for a superconducting device by Ishizu, Hiroshi, Yamamori, Hirotake, Arisawa, Shunichi, Tokiwa, Kazuyasu, Tanaka, Yasumoto

    Published in Physica. C, Superconductivity (15-04-2022)
    “…•A fractional flux quantum was trapped by a Nb bilayer disk with a through-hole.•This system works as a phase shifter for a SQUID placed on the disk.•No phase…”
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    Journal Article
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    Unconventional variation of Tc in the multilayered cuprate superconductor (Cu,C)Ba2Ca4Cu5Oy by HIRAI, Manabu, KODAMA, Yasuharu, KITO, Hijiri, TANAKA, Yasumoto, TOKIWA, Kazuyasu, WATANABE, Tsuneo, IYO, Akira

    Published in Journal of the Physical Society of Japan (01-05-2007)
    “…We report the anomalous Tc behavior in a five-layered compound of the cuprate superconductor (Cu,C)Ba2Ca4Cu5Oy. The Tc decreases once from 94.7 K…”
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    Observation of multiple fractional quanta in a superconducting bilayer disk with a pinhole by Ishizu, Hiroshi, Yamamori, Hirotake, Arisawa, Shunichi, Nishio, Taichiro, Tokiwa, Kazuyasu, Tanaka, Yasumoto

    Published in Physica. C, Superconductivity (15-09-2022)
    “…The magnetic-flux quantum (Φ0) cannot be generally divided into smaller ones in a usual superconductor. If a subdividing path is present, the science and…”
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    Journal Article
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    Vortex arrangement in an ultrathin superconducting bilayer disc by Ishizu, Hiroshi, Yamamori, Hirotake, Arisawa, Shunichi, Nishio, Taichiro, Tokiwa, Kazuyasu, Tanaka, Yasumoto

    Published in Physica. C, Superconductivity (15-02-2023)
    “…•Fractional vortices in bilayer discs can be enclosed by SQUIDs placed on the discs.•This enclosing process was experimentally verified.•A pinhole present in a…”
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    Journal Article