Search Results - "Tokiwa, Kazuyasu"
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Black Phosphorus as a High-Capacity, High-Capability Negative Electrode for Sodium-Ion Batteries: Investigation of the Electrode/Electrolyte Interface
Published in Chemistry of materials (22-03-2016)“…For a nonaqueous sodium-ion battery (NIB), phosphorus materials have been studied as the highest-capacity negative electrodes. However, the large volume change…”
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Electrical mapping of thermoelectric power factor in WO3 thin film
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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Disposable and Flexible Paper‐Based Optoelectronic Synaptic Devices for Physical Reservoir Computing
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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Synthesis and ionic liquid gating of hexagonal WO3 thin films
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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Soft chemical synthesis and electrochemical properties of calcium ferrite-type LixMn2O4
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
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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Electrochemical properties of transition metal substituted calcium ferrite-type Lix(M0.1Mn0.9)2O4 (M = Ni, Ti)
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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Erratum: "Interpretation of Abnormal AC Loss Peak Based on Vortex-Molecule Model for a Multicomponent Cuprate Superconductor"
Published in Japanese Journal of Applied Physics (21-08-2014)Get full text
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Synthesis and structure analysis of a new titanium oxide having an intergrowth structure between ramsdellite-type and calcium ferrite-type
Published in The Journal of physics and chemistry of solids (01-12-2012)“…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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Tc vs n relationship for multilayered high-Tc superconductors
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
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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Synthesis and Magnetic Properties of NiSe, NiTe, CoSe, and CoTe
Published in Japanese Journal of Applied Physics (01-05-2012)Get full text
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Anisotropic Electrical Conductivity in LiCoO2 Single Crystal
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
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
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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Phase shifter based on an ultrathin superconducting bilayer with a through-hole for a superconducting device
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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Unconventional variation of Tc in the multilayered cuprate superconductor (Cu,C)Ba2Ca4Cu5Oy
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
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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Vortex arrangement in an ultrathin superconducting bilayer disc
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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