Search Results - "Takeya, Hiroyuki"

Machine-learning-guided discovery of the gigantic magnetocaloric effect in HoB2 near the hydrogen liquefaction temperature by Castro, Pedro Baptista de, Terashima, Kensei, Yamamoto, Takafumi D, Hou, Zhufeng, Iwasaki, Suguru, Matsumoto, Ryo, Adachi, Shintaro, Saito, Yoshito, Song, Peng, Takeya, Hiroyuki, Takano, Yoshihiko

“…Magnetic refrigeration exploits the magnetocaloric effect, which is the entropy change upon the application and removal of magnetic fields in materials,…”
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Transport properties of the new Fe-based superconductor KxFe2Se2 (Tc=33 K) by Mizuguchi, Yoshikazu, Takeya, Hiroyuki, Kawasaki, Yasuna, Ozaki, Toshinori, Tsuda, Shunsuke, Yamaguchi, Takahide, Takano, Yoshihiko

“…We synthesized the new Fe-based superconductor K0.8Fe2Se2 single crystals. The obtained single crystal exhibited a sharp superconducting transition and the…”
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Tunable magnetic and magnetocaloric properties by thermal annealing in ErCo2 atomized particles by Yamamoto, Takafumi D., Saito, Akiko T., Takeya, Hiroyuki, Terashima, Kensei, Numazawa, Takenori, Takano, Yoshihiko

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Site selectivity on chalcogen atoms in superconducting La(O,F)BiSSe by Tanaka, Masashi, Yamaki, Takuma, Matsushita, Yoshitaka, Fujioka, Masaya, Denholme, Saleem J., Yamaguchi, Takahide, Takeya, Hiroyuki, Takano, Yoshihiko

“…Single crystals of La(O,F)BiSSe were grown by using a CsCl flux method. Single crystal X-ray structural analysis reveals that the crystal structure is…”
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Magnetocaloric particles of the Laves phase compound HoAl2 prepared by electrode induction melting gas atomization by Yamamoto, Takafumi D., Takeya, Hiroyuki, Saito, Akiko T., Terashima, Kensei, Numazawa, Takenori, Takano, Yoshihiko

“…Processing magnetocaloric materials into magnetic refrigerant particles is an essential issue in developing high-performance magnetic refrigerators. Here, we…”
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Experimental Observation of Pressure-Induced Superconductivity in Layered Transition-Metal Chalcogenides (Zr,Hf)GeTe4 Explored by a Data-Driven Approach by Matsumoto, Ryo, Hou, Zhufeng, Adachi, Shintaro, Yamamoto, Sayaka, Tanaka, Hiromi, Takeya, Hiroyuki, Irifune, Tetsuo, Terakura, Kiyoyuki, Takano, Yoshihiko

“…Layered transition metal chalcogenides (Zr,Hf)­GeTe4 were screened from the AtomWork database as potential pressure-induced superconductors by having a narrow…”
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The effect of exceptionally high fluorine doping on the anisotropy of single crystalline SmFeAsO1−xFx by Fujioka Masaya, Denholme, Saleem J, Tanaka, Masashi, Takeya Hiroyuki, Yamaguchi Takahide

“…We prepared single crystalline SmFeAsO1−xFx with an exceptionally high fluorine concentration by using a CsCl flux method. Comparing to conventional flux…”
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Demonstration of electric double layer gating under high pressure by the development of field-effect diamond anvil cell by Adachi, Shintaro, Matsumoto, Ryo, Yamamoto, Sayaka, Yamamoto, Takafumi D., Terashima, Kensei, Saito, Yoshito, Esparza Echevarria, Miren, Baptista de Castro, Pedro, Song, Peng, Iwasaki, Suguru, Takeya, Hiroyuki, Takano, Yoshihiko

“…We have developed an approach to control the carrier density in various materials under high pressure by the combination of an electric double layer transistor…”
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Concurrent synthesis and boron-doping of amorphous carbon films by focused ion beam-assisted chemical vapor deposition by Matsumoto, Ryo, Sadki, El Hadi S., Tanaka, Hiromi, Yamamoto, Sayaka, Adachi, Shintaro, Younis, Adnan, Takeya, Hiroyuki, Takano, Yoshihiko

“…•Boron-doped carbon films via focused ion beam induced chemical vapor deposition.•Concurrent deposition, boron doping, and patterning of boron-doped carbon…”
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Al substitution effect on magnetic properties of magnetocaloric material HoB2 by Iwasaki, Suguru, Yamamoto, Takafumi D., Baptista de Castro, Pedro, Terashima, Kensei, Takeya, Hiroyuki, Takano, Yoshihiko

“…We investigate the Al substitution effect for HoB2 to tune the Curie temperature (TC). The HoB2−xAlx samples with nominal x (xnom) of 0, 0.1, 0.3, and 0.5 are…”
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Adiabatic temperature change in ErAl2/metal PIT wires: A practical method for estimating the magnetocaloric response of magnetocaloric composites by Yamamoto, Takafumi D., Takeya, Hiroyuki, Terashima, Kensei, Iwasaki, Suguru, Baptista de Castro, Pedro, Numazawa, Takenori, Takano, Yoshihiko

“…•ΔTad of ErAl2 magnetocaloric wires with non-magnetic metal sheaths is studied.•The different sheath material dependence in ΔTad from that in ΔSM is found.•A…”
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Gas-atomized particles of giant magnetocaloric compound HoB2 for magnetic hydrogen liquefiers by Yamamoto, Takafumi D., Takeya, Hiroyuki, Saito, Akiko T., Terashima, Kensei, Baptista de Castro, Pedro, Numazawa, Takenori, Takano, Yoshihiko

“…The processing of promising magnetocaloric materials into spheres is one of the important issues on developing high-performance magnetic refrigeration systems…”
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Gas-atomized particles of giant magnetocaloric compound HoB$$_{2}$$ for magnetic hydrogen liquefiers by Yamamoto, Takafumi D., Takeya, Hiroyuki, Saito, Akiko T., Terashima, Kensei, Baptista de Castro, Pedro, Numazawa, Takenori, Takano, Yoshihiko

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Crystal Growth, Structural Analysis, and Pressure-Induced Superconductivity in a AgIn5Se8 Single Crystal Explored by a Data-Driven Approach by Matsumoto, Ryo, Hou, Zhufeng, Hara, Hiroshi, Adachi, Shintaro, Tanaka, Hiromi, Yamamoto, Sayaka, Saito, Yoshito, Takeya, Hiroyuki, Irifune, Tetsuo, Terakura, Kiyoyuki, Takano, Yoshihiko

“…A high-throughput first-principles calculation-assisted data-driven approach based on an inorganic materials database named AtomWork was performed to explore…”
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First single crystal growth and structural analysis of superconducting layered bismuth oxyselenide; La(O,F)BiSe2 by Tanaka, Masashi, Nagao, Masanori, Matsushita, Yoshitaka, Fujioka, Masaya, Denholme, Saleem J., Yamaguchi, Takahide, Takeya, Hiroyuki, Takano, Yoshihiko

“…Single crystals of La(O,F)BiSe2 were successfully grown for the first time by a CsCl flux method. Single crystal X-ray structural analysis clearly showed that…”
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Data-driven exploration of new pressure-induced superconductivity in PbBi2Te4 by Matsumoto, Ryo, Hou, Zhufeng, Nagao, Masanori, Adachi, Shintaro, Hara, Hiroshi, Tanaka, Hiromi, Nakamura, Kazuki, Murakami, Ryo, Yamamoto, Sayaka, Takeya, Hiroyuki, Irifune, Tetsuo, Terakura, Kiyoyuki, Takano, Yoshihiko

“…Candidate compounds for new thermoelectric and superconducting materials, which have narrow band gap and flat bands near band edges, were exhaustively searched…”
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Enhancement of giant refrigerant capacity in Ho1-Gd B2 alloys (0.1 ≤ x ≤ 0.4) by Baptista de Castro, Pedro, Terashima, Kensei, Yamamoto, Takafumi D., Iwasaki, Suguru, Saito, Akiko T., Matsumoto, Ryo, Adachi, Shintaro, Saito, Yoshito, ElMassalami, Mohammed, Takeya, Hiroyuki, Takano, Yoshihiko

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Observation of zero resistance in as-electrodeposited FeSe by Yamashita, Aichi, Matsumoto, Ryo, Tanaka, Masashi, Hara, Hiroshi, Iida, Kazumasa, Holzapfel, Bernhard, Takeya, Hiroyuki, Takano, Yoshihiko

“…Superconducting FeSe films were electrochemically deposited on rolling-assisted biaxially textured substrate (RABiTS) tape. We observed zero resistivity in the…”
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Phase Diagram of FeSe Deposited by Electrochemical Technique with Different Temperature and Voltage by Yamashita, Aichi, Tanaka, Masashi, Takeya, Hiroyuki, Takano, Yoshihiko

“…High-quality crystalline FeSe is successfully synthesized in 5 min by an electrochemical deposition technique via increasing the solution temperature. The…”
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Low-Temperature Carrier Transport in Ionic-Liquid-Gated Hydrogen-Terminated Silicon by Sasama, Yosuke, Yamaguchi, Takahide, Tanaka, Masashi, Takeya, Hiroyuki, Takano, Yoshihiko

“…We fabricated ionic-liquid-gated field-effect transistors on the hydrogen-terminated (111)-oriented surface of undoped silicon. Ion implantation underneath…”
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